1005 I/5 Proper Motions in Cape Zone Catalogue -40/-52 J H Spencer J Jackson His Majesty's Stationery Office, London ??? ??? 1936 Positional data Proper motions This catalog, listing the proper motions of 20,843 stars from the Cape Astrographic Zones, was compiled from three series of photographic plates. The plates were taken at the Royal Observatory, Cape of Good Hope, in the following years: 1892-1896, 1897-1910, 1923-1928. Data given include centennial proper motion, photographic and visual magnitude, Harvard spectral type, Cape Photographic Durchmusterung (CPD) identification, epoch, right ascension and declination for 1900.

--- Number 5 --- CZC Catalogue Identification Number --- Vmag Visual Magnitude mag RAh Right Ascension for 1900 hours h RAm Right Ascension for 1900 minutes min RAcs Right Ascension seconds in 0.01sec 1900 0.01s DE- Declination Sign --- DEd Declination for 1900 degrees deg DEm Declination for 1900 arcminutes arcmin DEds Declination for 1900 arcseconds 0.1arcsec Ep-1900 Epoch -1900 cyr CPDZone Cape Photographic Durchmusterung Zone --- CPDNo Cape Photographic Durchmusterung Number --- Pmag Photographic Magnitude mag Sp HD Spectral Type --- pmRAs Proper Motion in RA the relation is pmRA = 15 * pmRAs * cos(DE) if pmRAs is expressed in s/yr and pmRA in arcsec/yr 0.1ms/yr pmRA Proper Motion in RA mas/yr pmDE Proper Motion in Dec mas/yr Julie Anne Watko SSDOO/ADC 1995 Nov 03 I_5.xml 1006 I/6 Cape 20554 Faint Stars, -40 to -52, 1900.0 J H Spencer J Jackson His Majesty's Stationery Office, London ??? ??? 1939 1939HMSO..C......0S Positional data Proper motions This catalog contains positions, precessions, proper motions, and photographic magnitudes for 20,554 stars. These were derived from photographs taken at the Royal Observatory, Cape of Good Hope between 1923 and 1928. It covers the astrographic zones -40 degrees to -52 degrees of declination. The positions are given for epoch 1900 (1900.0). It includes spectral types for many of the stars listed. It extends the earlier catalogs derived from the same plates to fainter magnitudes. The computer-readable version consists of a single data table. The stated probable error for the star positions is 0.024 seconds of time (R.A.) and 0.25 seconds of arc (dec.) for stars with one determination, 0.017 seconds of time, and 0.18 seconds of arc for two determinations, and 0.014 / 0.15 for stars with three determinations. The precession and secular variations were derived from Newcomb's constants. The authors quote probable errors of the proper motions in both coordinates of 0.008 seconds of arc for stars with one determination, 0.0055 seconds for stars with two determinations, and 0.0044 for stars with three. The photographic magnitudes were derived from the measured diameters on the photographic plates and from the magnitudes given in the Cape Photographic Durchmusterung. The spectral classification of the cataloged stars was done with the assistance of Annie Jump Cannon of the Harvard College Observatory. The user should consult the source reference for more details of the measurements and reductions. See also the notes in this document for additional information on the interpretation of the entries.

ID Cape Number --- rem Remark A = Astrographic Star F = Faint Proper Motion Star N = Other Note --- CPDZone Cape Phot. Durchmusterung (CPD) Zone All CPD Zones are negative. - signs are not included in data. "0" in column 8 signifies Astrographic Plate instead of CPD. --- CPD CPD Number or Astrographic Plate See also note on CPDZone. Astrographic plate listed "is the more southerly on which the star occurs." Thus, y-coordinate is positive wherever possible. --- n_CPD [1234] Remarks A number from 1-4 appears in this byte for double stars where the same CPD number applies to more than one star. --- mpg Photographic Magnitude The Photographic Magnitude is "determined from the CPD Magnitude and the diameter on the Cape Astrographic Plates by means of the data given in the volume on the Magnitudes of Stars in the Cape Zone Catalogue." A null value (99.9) signifies a variable star. mag RAh Mean Right Ascension hours 1900 h RAm Mean Right Ascension minutes 1900 min RAs Mean Right Ascension seconds 1900 s DEd Mean Declination degrees 1900 deg DEm Mean Declination arcminutes 1900 arcmin DEs Mean Declination arcseconds 1900 arcsec N Number of Observations --- Epoch Epoch +1900 yr pmRA Proper Motion in RA seconds of time s/a pmRAas Proper Motion in RA arcseconds arcsec/a pmDE Proper Motion in Dec arcseconds arcsec/a Sp HD Spectral Type --- Julie Anne Watko SSDOO/ADC 1996 Mar 26 I_6.xml 1014 I/14 Proper Motions of 1160 Late-Type Stars H J Fogh Olsen Astron. Astrophys. Suppl. Ser. 2 69 1970 1970A&AS....2...69O II/38 : Stars observed photoelectrically by Dickow et al. Fogh Olsen H.J. 1970, Astron. Astrophys. Suppl. Ser., 2, 69. Fogh Olsen H.J. 1970, Astron. Astrophys., Suppl. Ser., 1, 189. Proper motions Improved proper motions for the 1160 stars contained in the photometric catalog by Dickow et al. (1970) are presented. Most of the proper motions are from the GC, transferred to the system of FK4. For stars not included in the GC, preliminary AGK or SAO proper motions are given. Fogh Olsen (Astron. Astrophys. Suppl. Ser., 1, 189, 1970) describes the method of improvement. The mean errors of the centennial proper motions increase with increasing magnitude. In Right Ascension, these range from 0.0043/cos(dec) for very bright stars to 0.096/cos(dec) for the faintest stars. In Dec- lination, the range is from 0.065 to 1.14.

No Number Henry Draper or Bonner Durchmusterung number --- pmRA Centennial Proper Motion RA s/ca pmDE Centennial Proper Motion Dec arcsec/ca RV Radial Velocity km/s Julie Anne Watko ADC 1996 Jun 03 I_14.xml 1016 I/16 Catalog of 3356 Faint Stars, 1950 J Larink A Bohrmann H Kox J Groeneveld H Klauder Verlag der Sternwarte, Hamburg-Bergedorf ??? ??? 1955 1955 Fundamental catalog Positional data Proper motions This catalog of 3356 faint stars was derived from meridian circle observations at the Bergedorf and Heidelberg Observatories. The positions are given for the equinox 1950 on the FK3 system. The stars are mainly between 8.0 and 10.0 visual magnitude. A few are brighter than 8.0 mag. The lower limit in brightness resulted from the visibility of the stars.

All stars were observed at both the Heidelberg and Bergedorf Observatories. Normally, at each observatory, two observations were obtained with the clamp east and two with the clamp west. The mean errors are comparable for the two observatories with no significant systematic difference in the positions between them. The mean errors of the resulting positions should be approximated 0.011s/cos(dec) in right ascension and ).023" in declination. The proper motions were derived from a comparison with the catalog positions with the positions in the AGK2 and AGK2A with a 19 year baseline and from a comparison of new positions with those in Kuestner 1900 with about a fifty year baseline. The magnitudes were taken from the AGK2. Most spectral types were determined by A. N. Vyssotsky. A few are from the Bergedorfer Spektraldurchmusterung.

ID Catalog number --- DMz BD zone --- DMn BD number --- mag Photographic magnitude mag Sp Spectral class --- RAh Right Ascension hours (1950) h RAm Right Ascension minutes (1950) min RAs Right Ascension seconds (1950) s Pr-RA1 First order precession in RA per century 0.01s/a Pr-RA2 Second order precession in RA per century 0.0001s2/a2 pmRA Proper motion in RA from AGK2 positions 0.01s/a pmRA2 Proper motion in RA from Kuestner positions 0.01s/a DE- Sign of declination (1950) --- DEd Declination degrees (1950) deg DEm Declination minutes (1950) arcmin DEs Declination seconds (1950) arcsec Pr-de1 First order precession in dec per century arcsec/ha Pr-de2 Second order precession in dec per century arcsec2/ha2 pmdec Proper motion in DE from AGK2 positions arcsec/ha pmdec2 Proper motion in DE from Kuestner positions arcsec/ha epoch Epoch of observation - 1900.0 yr rem Note for star in printed catalog 1 = ma (blend?) 3 = pr (preceding) 4 = seq (following) 5 = bor (northern) 6 = au (southern) * = other note in printed volume (All notes in the printed volume have not been indicated in this version.) the printed volume sometimes has additional information on the systems with numerical remarks. --- Nancy Grace Roman ADC/SSDOO 1996 Feb 01 I_16.xml 1021A I/21A AC Toulouse, Bordeaux, Paris & Oxford P Lacroute A Valbousquet CDS Bull. No. 6, p. 38 ??? ??? 1974 1974BICDS...6...38L Astrographic zones Magnitudes, photographic Positional data The "Carte de Ciel" (or "Astrographic Catalogue") is a catalogue of star positions and magnitudes, determined on the photographic plates taken by the normal astrographs which are installed in observatories of various latitudes, as a world-wide astronomical project (see Eichhorn, 1974, p279). The catalogue is divided into 22 declination zones, each of which is assigned to each observatory, e.g., a zone from +18 to +24 degrees is to Paris observatory. Each observatory has taken photographs of 2 deg x 2 deg area in and covering each zone, measured the X,Y coordinates of star images on the photographic plates, and published the results as the printed catalogues. The present catalogue is the results of reduction of these X,Y coordinates into right ascension and declination values, for declination zones of +05 to +31, by using AGK2/3 catalogue as the reference.

ZONE plate identifier declination zone, or the declination of the center of each astrographic plate deg PLATE plate identifier running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. --- HYPH hyphen number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- STAR running number of star on the plate number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- RAh right ascension (hours) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. h RAm right ascension (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. min RAs ascension (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. s DE- declination sign number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- DEd declination (degrees) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. deg DEm declination (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. arcmin DEs declination (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. arcsec EPOCH plate epoch number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. a mB photographic magnitude number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. mag AGKNO AGK2 number AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- SUFFIX suffix to the AGK2 number Suffix to the AGK2 number, if needed, otherwise CR/LF. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- ZONE plate identifier declination zone, or the declination of the center of each astrographic plate deg PLATE plate identifier running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. --- HYPH hyphen number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- STAR running number of star on the plate number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- RAh right ascension (hours) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. h RAm right ascension (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. min RAs ascension (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. s DE- declination sign number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- DEd declination (degrees) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. deg DEm declination (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. arcmin DEs declination (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. arcsec EPOCH plate epoch number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. a mB photographic magnitude number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. mag AGKNO AGK2 number AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- SUFFIX suffix to the AGK2 number Suffix to the AGK2 number, if needed, otherwise CR/LF. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- ZONE plate identifier declination zone, or the declination of the center of each astrographic plate deg PLATE plate identifier running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. --- HYPH hyphen number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- STAR running number of star on the plate number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- RAh right ascension (hours) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. h RAm right ascension (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. min RAs ascension (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. s DE- declination sign number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- DEd declination (degrees) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. deg DEm declination (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. arcmin DEs declination (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. arcsec EPOCH plate epoch number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. a mB photographic magnitude number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. mag AGKNO AGK2 number AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- SUFFIX suffix to the AGK2 number Suffix to the AGK2 number, if needed, otherwise CR/LF. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= Suffix to the AGK2 number, if needed, otherwise CR/LF. --- ZONE plate identifier declination zone, or the declination of the center of each astrographic plate deg PLATE plate identifier running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. --- HYPH hyphen number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. --- STAR running number of star on plate Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. --- RAh right ascension (hours) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. h RAm right ascension (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. min RAs right ascension (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. s DE- declination sign number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. --- DEd declination (degrees) [B1950] number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. deg DEm declination (minutes) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. arcmin DEs declination (seconds) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. arcsec EPOCH plate epoch number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. a mB photographic magnitude number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. mag AGKNO AGK2 number, if AGK2/3 star was AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. --- SUFFIX suffix to the AGK2 number suffix to the AGK2 number, if needed, otherwise CR/LF. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that zones lower from 27 deg have generally 180 plates, and those higher from 28 deg have 160 plates. number= Note that this number in the Oxford I zone is so determined to be unique in a whole zone (e.g., in the zone +25 deg.). number= AGK2 number, if AGK2/3 star was identified, otherwise CR/LF. Note that this is incomplete. number= suffix to the AGK2 number, if needed, otherwise CR/LF. --- J.A. Watko SSDOO/ADC 1995 Koichi Nakajima [CDS] 24-Sep-1993 Nov 16 I_21A.xml 1022A I/22A Astrographic Catalogue Algier, -02 to +04 P Lacroute A Valbousquet CDS Bull. No. 6, p. 38 ??? ??? 1974 1974BICDS...6...38L Positional data Astrographic zones Magnitudes, photographic The "Carte de Ciel" (or "Astrographic Catalogue") is a catalogue of star positions and magnitudes, determined on the photographic plates taken by the normal astrographs which are installed in observatories of various latitudes, as a world-wide astronomical project (see Eichhorn, 1974, p279). The catalogue is divided into 22 declination zones, each of which is assigned to each observatory, e.g., a zone from +18 to +24 degrees is to Paris observatory. Each observatory has taken photographs of 2 deg x 2 deg area in and covering each zone, measured the X,Y coordinates of star images on the photographic plates, and published the results as the printed catalogues. The present catalogue is the results of reduction of these X,Y coordinates into right ascension and declination values, for declination zones of +05 to +31, by using AGK2/3 catalogue as the reference.

ZONE plate identifier declination zone, or the declination of the center of each astrographic plate deg PLATE plate identifier running number of plate in the zone Note that this number is negative when the zone is negative. --- STAR running number of star on the plate number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. --- RAmas right ascension (B1950) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. mas DEmas declination (B1950) number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. mas EPOCH plate epoch from 180000 number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. ca mB photographic magnitude number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. dmag X X coordinate on the plate number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. 0.1um Y Y coordinate on the plate number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. 0.1um AGK3Z AGK3 number : zone number No signs on any AGK3 zones. number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. deg AGK3N AGK3 number : star number number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. --- ZERO zero number= declination zone, or the declination of the center of each astrographic plate number= running number of plate in the zone Note that this number is negative when the zone is negative. number= No signs on any AGK3 zones. --- Koichi Nakajima CDS 1993 J.A. Watko [SSDOO/ADC] 21-Feb-1996 Sep 24 I_22A.xml 1040 I/40 WASHINGTON 20 Catalog H R Morgan Publ. USNO, 2nd series, vol. XIII, Washington ??? ??? 1933 1983 Meridian observations Positional data Historical catalog This catalogue contains the two parts: the 9989 first stars are the standard and intermediary stars, +90 to -36 degrees of declination, observed in the years 1913 to 1926, and reduced without proper motion to the equinox 1920.0 ; the second part (stars numbered 9990 to 10571) are 582 miscellaneous stars.

Seq Running number --- DM Durchmusterung (BD or CD) identification --- Sp Spectral type, from HD --- NumSp Coded spectral type number=1 the numeric spectral type exists only for stars 1-10400; it is coded on 3 bytes as follows: ------------------------------- Byte#16 Byte#17 Byte#18 ------------------------------- R=0 a or 0=0 Oe5=1 b or 1=1 O=2 c or 2=2 B=2 d or 3=3 *=3 A=4 e or 4=4 F=5 5=5 e=5 G=6 6=6 K=7 7=7 M=8 8=8 N=9 9=9 S=- p=- ------------------------------- Special cases: Mb=83 Mc=88, Md=8 5, Me=8-5, Np=9 --- Vmag Magnitudes (from Harvard Revised Photometry or corrected BD) mag n_Vmag for variable star --- ObsMag Observed magnitude mag RAh Right Ascension B1920 (hours), at Epoch h RAm Right Ascension B1920 (minutes), at Epoch min RAs Right Ascension B1920 (seconds), at Epoch s pmRA Annual proper motion in RA (in Boss system) s/a DE- Declination B1920 (sign) --- DEd Declination B1920 (degrees) deg DEm Declination B1920 (minutes) arcmin DEs Declination B1920 (0.01arcsec) arcsec pmDE Annual proper motion in Dec (in Boss system) arcsec/a o_RAs Number of observations in RA --- o_DEs Number of observations in Dec number=2 the value is not specified when it is identical to the corresponding number for RA. --- EpRA-1900 Mean Epoch of Right Ascension 0.01a EpDE-1900 Mean Epoch of Declination number=2 the value is not specified when it is identical to the corresponding number for RA. 0.01a Note indicates a note in the catalog --- Francois Ochsenbein, James Marcout CDS 1998 Jun 10 UNKNOWN UNKNOWN The catalogue was originally keypunched at the Astronomisches Rechen-Institut, Heidelberg, Germany, in the 70's. It contained 10400 stars, i.e. 171 stars were missing (note from Richard Swifte, Royal Greenwich Observatory, October 1981). The missing stars were added in June 1998, with the help of an Optical Character Recognition system. I_40.xml 1044 I/44 Second Cat of Fundamental Stars G D Baturina V S Bedin K G Gnevysheva M S Zverev A A Naumova A I Plugina D D Polozhentsev T A Polozhentseva E A Stepanova Tr. Glav. Astron. Obs. Pulkovo, ser. 2 86 4-158 1986 1986TrPul..86....4B Positional data The Catalogue SPF2 was obtained from observations of the fundamental FK4 stars as a reference stars for SRS, BS and DS star. Observations were made by Pulkovo observers in the declination zone -42 to -90 and +16 to -16 degrees using Repsold Meridian Circle of the Cerro Calan Observatory (Santiago, Chile) from 1963 to 1968.

They worked in closed cooperations with their Chilean colleagues who observed other declination zones. In total 15160 observations were made of FK4 stars. The reductions of observations were made by the quasi-absolute method proposed by M.S.Zverev (1969). Investigations were carried out of the systematic differences of type "E-W" as well as of the personal equations. Also differences of type "Upper - Lower culmination" were investigated. All these corrections were applied to the observations. The mean error of the single observations reduced to the equator is +/- 14.0 millisecond of time. The mean error of the position of a single star reduced to the equator is +/- 2.8 millisec of time (each position in the middle are consists from 25 observations). The main results of the systematic errors were published by Zverev and Naumova.

03 "03" --- ID FK4 number --- mag Magnitude mag RAh Right Ascension (B1950.0) hours h RAm Right Ascension (B1950.0) minutes min RAs Right Ascension (B1950.0) seconds s DE- Declination (B1950.0) sign --- DEd Declination (B1950.0) degrees deg DEm Declination (B1950.0) arcminutes arcmin DEs Declination (B1950.0) arcsec arcsec del_RA RA-RA(FK4) s Ep Epoch of mean observation - 1900 years a e Error E*cos(DE) where E = error of observations s N Number of observations --- rem Remark "-3" data of spf2b.dat exist "03" data of spf2b.dat do not exist --- ID FK4 number --- mag Magnitude mag RAh Right Ascension (B1950.0) hours h RAm Right Ascension (B1950.0) minutes min RAs Right Ascension (B1950.0) seconds s DE- Declination (B1950.0) sign --- DEd Declination (B1950.0) degrees deg DEm Declination (B1950.0) arcminutes arcmin DEs Declination (B1950.0) arcsec arcsec del_RA RA-RA(FK4) s Ep Epoch of mean observation - 1900 years a e Error E*cos(DE) where E = error of observations s N Number of observations --- 3 "3" --- ID FK4 number --- mag Magnitude mag RAh Right Ascension (B1950.0) hours h RAm Right Ascension (B1950.0) minutes min DE- Declination (B1950.0) sign --- DEd Declination (B1950.0) degrees deg DEm Declination (B1950.0) arcminutes arcmin uRA RA-RA(FK4) (upper culmination) s uEp Epoch of mean obs (upper culmination) - 1900 a ue Error (upper culmination) s uN Number of observations (upper culmination) --- lRA RA-RA(FK4) (lower culmination) s lEp Epoch of mean obs (lower culmination) - 1900 a le Error (lower culmination) s lN Number of observations --- Nancy Grace Roman and Julie Anne Watko SSDOO/ADC 1996 Feb 29 We appreciate the extensive information provided by D. Polojentsev. I_44.xml 1061B I/61B AGK3 Catalogue W Dieckvoss O Heckmann Hamburg-Bergedorf ??? ??? 1975 1975QB6.A15.......D I/176 : AGK3U: an updated version of the AGK3 (Bucciarelli+ 1992) I/69 : AGK3 Catalogue by Right Ascension (Dieckvoss, Heckmann 1975) I/161 : AGK3R (Smith 1990) Cannon, A. J. (1925-1936), The Henry Draper Extension, Ann. Astron. Obs. Harvard College 100. Cannon, A. J. and Pickering, E. C. (1918-1924), The Henry Draper Catalogue, Ann. Astron. Obs. Harvard College 91-99. Dieckvoss, W. (in collaboration with H. Kox, A. Gunther and E. Brosterhus) (1975), AGK3 Star Catalogue of Positions and Proper Motions North of -2.5 Degrees Declination, Hamburg-Bergedorf. Nagy, T. A. 1979, Documentation for the Machine-Readable Version of the AGK3 Catalogue of Positions and Proper Motions North of -2.5 Degrees Declination, Systems and Applied Sciences Corporation R-SAW-7/79-35. Warren, W. H. Jr. and Kress, K. 1980, Astron. Data Center Bull. 1, 19. Willstrop, R. V. 1983, Bull. Inf. Cent. Donnees Stellaires No. 24, 65. Positional data Proper motions Magnitudes, photographic The AGK3 provides positions and proper motions for stars north of -2.5 degrees. For the most part, it contains the stars in the AGK2 but is based on newly remeasured reference stars whose positions were reduced to the FK4 system. A list of 446 AGK2 stars not in the AGK3 and of three new stars is provided. All plates were taken at the Bergedorf Observatory. In addition to the positions and proper motions, the catalog contains magnitudes and spectral types, the epoch of the observations, the epoch difference between the AGK2 and AGK3, and the BD numbers.

The AGK3 Star Catalogue of Positions and Proper Motions North of -2.5 Degrees Declination (hereinafter AGK3) was conceived and planned during discussions between O. Heckmann and D. Brouwer at Hamburg Observatory following the 1952 International Astronomical Union (IAU) General Assembly in Rome. It was concluded that an adequate number of reference stars (AGK3R) should be observed by as many meridian circles of as many observatories as possible, the revision of FK3, then in progress (FK4), should define the reference frame, and the same instruments as used for AGK2 should be used for the observations for AGK3. A formal recommendation was adopted through Commission 8 at the 1955 IAU General Assembly in Dublin, with the observatories at Babelsberg, Bergedorf, Bordeaux, Greenwich, Heidelberg, Nikolajew, Ottawa, Paris, Pulkovo, Strasbourg and Washington (USNO) to collaborate in the work, and with F. P. Scott (USNO) to coordinate the meridian circle observations of AGK3R stars. The completion of the photographic observations was to be the responsibility of the observatories at Bergedorf and Bonn, with all plate measurements to be done at the former. (However, it was finally decided that all plates, even for the AGK2 Bonn zones, would be taken at Bergedorf.) The plates for AGK3 were secured at Bergedorf between August 1956 and June 1964, with special precautions (exposures on both sides of the pier) made to compensate for possible changes in the camera objective. The two sets of plates were measured at Bergedorf in opposite directions and averaged to obtain final x,y coordinates. The detailed procedures for the correction of magnitude-color errors, reduction of the measures using the AGK3R stars, re-reduction of AGK2 using its reference catalog AGK2A transformed to the FK4 system, and final reduction of the AGK3 positions and proper motions, are discussed by W. Dieckvoss in his technical introduction to the source reference. Although a more detailed discussion of errors is given by Dieckvoss, the standard error for one coordinate on one plate as determined from a limited sample of 110 pairs of plates is +/- 0.025" for AGK3.

AGsign Sign of AGK3 number. --- AGzone AGK3 zone. --- AGnum AGK3 number AGK3 number in increasing order within each declination zone. The field is filled with preceding zeros. --- m_AGnum Component for duplicates Component identification where duplicates AGK3 numbers occur. The lower case letters "a" and "b" may be present. --- Pmag Photographic magnitude from AGK2 mag Sp Spectral type Spectral Type from Henry Draper Catalogue (Cannon and Pickering, 1918-1924), its Extension (Cannon, 1925-1936), Schildt (Yale Transactions) or determined by A. N. Vyssotsky and collaborators at the Leander-McCormick Obs. --- RAh Right ascension hours (1950.0) h RAm Right ascension minutes (1950.0) min RAs Right ascension seconds s DE- Sign of declination (1950.0) --- DEd Declination degrees (1950.0) deg DEm Declination minutes arcmin DEs Declination seconds arcsec nobs Number of photographic observations Number of photographic observations used to determine the position. Single-digit numbers are preceded by a zero. --- Ep-1900 Epoch of AGK3 position minus 1900 yr pmRA Annual proper motion in right ascension Annual proper motion in right ascension multiplied by cos(delta), determined by differencing the AGK3 and AGK2 positions and dividing by the epoch difference. Proper motions are missing for stars new in AGK3 (see Table 6). If a calculated value of the proper motion exceeded the field capacity a value of "9999" is given with a "+" in byte 38. The suggested format reads the datum in the correct units. mas/yr pmDE Annual proper motion in declination mas/yr dEpoch Epoch difference AGK3-AGK2 yr BD Full BD catalog designation The full BD identification (see cat. <I/122>) contains: bytes 59-60: "BD" or blank byte 61: Sign of BD zone number bytes 62-63: BD zone number bytes 64-68: BD number within zone --- m_BD Component of multiple system Numerical code for identification of a component of a multiple system: (1 = primary [P]; 2 = secondary [S]; 3 = A; 4 = B; 5 = S1; 6 = S2; 7 = P1; 8 = P2; 9 = C). BD supplemental stars (lower case letters) are assigned codes but are indistinguishable from A and B designations because the codes are the same. Since the file format only allows one byte for the duplicity code, and nine codes are already used, the distinction cannot be drawn. If it is necessary to distinguish or identify supplemental stars, the Catalog of BD Supplemental Stars (Warren and Kress 1980) should be used. --- Sum Sum of discrepancy codes Sum of discrepancy codes, calculated as the sum of 2**v (2 to the power of v), where v = 0 (BD number), 1 (mpg and/or spectral type), 2 (AGK2 right ascension), 3 (AGK2 declination), 4 (AGK3 right ascension), 5 (AGK3 declination). --- pmsec Annual proper motion in seconds of RA, computed by dividing by 15cos(delta) s/yr dRA The difference in right ascension in the sense AGK3 - AGK2modified The residual quantity of the difference in right ascension (multiplied by cos(delta)) in the sense AGK3 - (AGK2modified), where the last quantity denotes data from the re-reduced AGK2. arcsec dDE The difference in declination in the sense AGK3 - AGK2modified arcsec agk3.doc Documentation James E. Gass and Gail L. Schneider SSDOO/ADC 1997 Jul 01 UNKNOWN UNKNOWN The machine version of the AGK3 was received on magnetic tape from the Centre de Donnees Stellaires, Strasbourg in 1978. The version received had been obtained originally from the Astronomisches Rechen- Institut in Heidelberg. A preliminary document for a modified and corrected version of the catalog was produced by Nagy (1979). The following changes were made to the Heidelberg file in order to correct some minor errors and to produce a file conforming more closely to the published version: 1. AGK3 component identifications for stars where more than one AGK3 star has the same number were changed from upper case characters (A, B) to lower case (a, b) as in the printed edition. 2. Nine stars in AGK3 zone -00, but in BD zone +00 were found to have a BD zone of +90. The BD zone for these stars was changed to +00. These stars are: AGK3 -00 1467, 1510, 1530, 1531, 1532, 1602, 1693, 1774, and 2120. 1-Jul-1997: Explicit decimal points added to floating point fields in computer-readable version. Document brought up to standard. [J. Gass, ADC] 1-Sep-1998: filled blanks between sign and value with zeroes in columns pmRA, pmDE, pmsec, dRA, dDE to allow correct interpretations [F. Ochsenbien, CDS] I_61B.xml 1062C I/62C Perth 70 B: Positions 24900 Stars E Hog J von der Heide Abh. der Hamberger Sternwarte, Band IX. ??? ??? 1976 1976AAHam...9....1H Astrometric data Photometry This Perth 70: A Catalogue of Positions of 24900 Stars contains accurate positions and magnitudes of 24,871 reference stars, mostly in the southern hemisphere, plus other useful data such as approximate proper motions, radial velocities, and parallaxes. The Perth 70 is a result of meridian circle observations made by the Hamburg Observatory expedition to Perth as part of the international effort on Southern Reference Stars (SRS). The catalog described here provides the mean values for each star, including the position, magnitude, and mean epoch of observation; the proper motions, however, were neither observed nor recomputed from comparing the Perth positions to older material.

This catalog is the September 1992 version of the results of meridian circle carried out at Perth in the late 1960's and early 1970's. Some 107 circumpolar stars occupy two records each, one for observations at upper culmination and one for observations at lower culmination, so the number of records is greater than the number of stars. This file contains the mean values of the meridian circle observations (position and magnitude) made at Perth, plus auxiliary quantities usually taken from the preliminary version of the Southern Reference Stars (SRS) catalog (Corwin, 1992). The first part of each record presents the same information that is contained in the printed catalog; the remaining information was not printed. Missing data are denoted by blank-filled fields except for the standard errors of one observation in R.A. * cos(dec) and in declination. In those fields, missing data are indicated by "0". Stars with numbers in the 30000's are in the FK4 catalog, with the last four digits being the FK4 number. Stars with numbers in the 40000's are in the Bright Star Catalog in the same format. Stars with other numbers are program stars.

ID Perth 70 catalog number --- n_ID S means star is in the FK4 suppl. --- V V magnitude If the hundredths place (byte 12) is blank, the number was copied from the preliminary SRS; otherwise, the magnitude was observed at Perth. mag Sp Spectral type; from SRS The spectral types are always those of the printed catalog. Two stars must be mentioned specifically: fl2 Velorum (SRS #30309) and O Cygni (SRS #44262). The first, a Wolf-Rayet star (type WC), is listed in the FK5 as "Oap" (the HD designation) and appears here as "O0." The second, a Mira Ceti-type pulsating variable, spectral type "S7ev," appears here as "M7." --- RAh Right ascension hours (B1950) Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. h RAm Right ascension minutes (B1950) Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. min RAs Right ascension minutes (B1950) Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. s cul Culmination flag This is blank except for circumpolar stars, which have 2 records, one marked `U' for upper culmination observations, and one marked `L' for lower culmination observations. --- DE- Sign of declination --- DEd Declination degrees (B1950) deg DEm Declination minutes (B1950) arcmin DEs Declination seconds (B1950) arcsec epRA Mean epoch of observation in RA -1900000 Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. ma epDE Mean epoch of observation in dec -1900000 ma o_RA Number of observations in RA Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. --- RAdel Indicates >=1 obser. in RA deleted Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. --- o_DE Number of observations in declination --- DEdel Indicates >=1 obser. in dec deleted --- q_RAs Residual in right ascension Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. These are the Perth position minus the position in the preliminary SRS, corrected for proper motion to the mean epoch of observation. The signs of the residuals are changed for circumpolar stars observed at lower culmination. carcsec q_DEs Residual in declination carcsec pmRA Proper motion in right ascension Positions are referred to the system of the FK4 (equinox B1950.0) at the mean epoch of observation for each coordinate for each star. These are copied from the preliminary SRS; the Perth 70 positions were not used to compute them. For centennial proper motions, use formats F7.3 and F7.2 for proper motion in RA and proper motion in declination, respectively. s-5/a pmDE Proper motion in declination These are copied from the preliminary SRS; the Perth 70 positions were not used to compute them. For centennial proper motions, use formats F7.3 and F7.2 for proper motion in RA and proper motion in declination, respectively. arcsec-4/a DMcat Durchmusterung catalog The catalog identifier (bytes 84-85) is either `BD' for Bonner Durchmusterung, `CD' for Cordoba Durchmusterung, or `CP' for Cape Photographic Durchmusterung. The zone is contained in bytes 87-89 (with the sign in byte 87), and the serial number, in bytes 90-94. --- DMzone Durchmusterung zone --- DMnum Durchmusterung number