I/154 Astrographic Catalogue, Zones -02 to +31 degrees (Roeser 1990)
Astrographic Catalogue, Zones -02 to +31 degrees Right Ascension and
Declination Files
Roeser S.
<Astronomisches Rechen-Institut, Heidelberg, 1990>
ADC_Keywords: Astrometric data
Description:
The "Astrographic Catalogue" (or "Carte de Ciel") 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.
A part of this catalogue, i.e., zones from -02 to +31 degrees, was
once recompiled by using AGK2/3 catalogue as the reference (Lacroute
1981), and is already archived in CDS as catalogues I/21 and 22.
The present catalogue gives the result of recalculation of the same
zones, by using AGK3 catalogue (printed Hamburg version) as the
reference. Note that since the content of stars per plate has not been
checked, there may be some entries missing.
The participated observatories and the archived files are as follows:
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declination zone observatory file
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-02 to +04 Algiers f1
+05 to +10 Toulouse f2
+11 to +17 Bordeaux f3
+18 to +24 Paris f4
+25 to +31 Oxford I f5
------------------------------------------------------
Note that +11 degree zone is also observed by Toulouse, and the
results are included in the file f2 .
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
f1 57 330449 Algiers zone (-02,-01,+00,+01,+02,+03,+04)
f2 57 433081 Toulouse zone (+05 to +10 and +11 degree)
f3 57 354947 Bordeaux zone (+11 to +17 degree)
f4 57 436449 Paris zone (+18 to +24 degree)
f5 57 471421 Oxford I zone (+25 to +31 degree)
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Byte-by-byte Description of file: f1 f2 f3 f4
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Bytes Format Unit Label Explanations
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1- 2 I2 deg ZONE *plate identifier (1)
3- 5 I3 --- PLATE *plate identifier (2)
6 A1 --- --- [-] hyphen
7- 10 I4 --- id running number of star on the plate
13- 14 I2 h RAh right ascension (hours) [B1950]
16- 17 I2 min RAm right ascension (minutes)
19- 24 F6.3 s RAs right ascension (seconds)
25 A1 --- DE- declination sign
26- 27 I2 deg DEd declination (degrees) [B1950]
29- 30 I2 arcmin DEm declination (minutes)
32- 36 F5.2 arcsec DEs declination (seconds)
37- 43 F7.2 a Epoch plate epoch
44- 47 F4.1 mag mag photographic magnitude
48- 55 A8 --- AGKNO *AGK3 number
56- 57 A2 --- SUFFIX *blank
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Note on ZONE:
Declination zone or the declination of the center of each astrographic
plate.
Note on PLATE:
Running number of plate in the zone.
Note on AGKNO:
AGK3 number if AGK3 star was identified in Strasbourg; otherwise blank.
Note, a survey of 100000 records in f1 found no AGK3 numbers.
col. 48-50 may be, e.g., ' -1', '-01', '+01', '&01', ' +1', ' -', etc.
Note, a survey of 100000 records in f1 found no AGK3 numbers.
Note on SUFFIX:
Will be used for the suffix to the AGK3 number but not yet used.
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Byte-by-byte Description of file: f5
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Bytes Format Unit Label Explanations
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1- 2 I2 deg ZONE *plate identifier (1)
3- 5 I3 --- PLATE *plate identifier (2)
6 A1 --- --- [-] Hyphen
7- 11 I5 --- id *running number of star in the zone
13- 14 I2 h RAh right ascension (hours) [B1950]
16- 17 I2 min RAm right ascension (minutes)
19- 24 F6.3 s RAs right ascension (seconds)
25 A1 --- DE- declination sign
26- 27 I2 deg DEd declination (degrees) [B1950]
29- 30 I2 arcmin DEm declination (minutes)
32- 36 F5.2 arcsec DEs declination (seconds)
37- 43 F7.2 yr Epoch plate epoch
44- 47 F4.1 mag mag photographic magnitude
48- 55 A8 --- AGKNO *AGK3 number, if AGK3 star was identified in
56- 57 A2 --- SUFFIX *blank
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Note on ZONE, PLATE, AGKNO, and SUFFIX:
See notes for f1, f2, f3, and f4.
Note on id:
This number is so counted as to be unique in the zone.
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Acknowledgement:
This ReadMe is a standardization of the Intro file prepared by Koichi
Nakajima [CDS] on 1-Sept-1993.
References :
Eichhorn, H. (1974): Astrometry of Star Positions, Frederick Unger
Publ. Co., New York.
Lacroute, P. (1981): Bull. Inform. CDS, Vol.21, p2.
(End) Nancy Grace Roman [ADC/SSDOO] 09-May-1996