J/PAZh/24/93 M 31 reference catalog (Shokin+ 1998)
A reference catalog for accurate position determinations in the region of M 31
Shokin Yu.A., Kulagina N.B.
<Pis'ma Astron. Zh. 24, 93 (1998)>
=1998PAZh...24...93S 1998PAZh...24...93S (SIMBAD/NED BibCode)
=1998AstL...24...69S 1998AstL...24...69S
ADC_Keywords: Fundamental catalog ; Positional data ; Magnitudes
Abstract:
We compiled a catalog of 421 references 12-15mag stars for determining
accurate positions of objects in the region of M 31. We also compiled
a star chart, which is provided as an Internet Web service, for
identifying the catalogued reference stars on the plates of observers.
AQccurate positions and a finding chart are given for 33 reference
15-17mag stars in a 10'x12' field near the center of M 31.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 39 421 Reference catalogue
table2.dat 39 33 Equatorial coordinates (B1950) of stars at the
center of M31
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See also:
http://nostromo.sai.msu.su/m31/ : The star chart
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [SK98] [1/421] Sequential number
7- 11 F5.2 mag Bmag Photographic B magnitude (1)
13 I1 h RAh Right ascension (1950)
15- 16 I2 min RAm Right ascension (1950)
18- 23 F6.3 s RAs Right ascension (1950)
26 A1 --- DE- Declination sign
27- 28 I2 deg DEd Declination (1950)
30- 31 I2 arcmin DEm Declination (1950)
33- 37 F5.2 arcsec DEs Declination (1950)
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Note (1): The photoelectric magnitudes for stars Nos. 195, 298, 225, 254
are from Arp, 1956AJ.....61...15A 1956AJ.....61...15A and
for star 239 from de Vaucouleurs & Corwin, 1985ApJ...295..287D 1985ApJ...295..287D
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1 - 2 I2 --- [SK98]Center [1/33] Number of reference star
6 I1 h RAh Right ascension (1950)
8 - 9 I2 min RAm Right ascension (1950)
11- 16 F6.3 s RAs Right ascension (1950)
20 A1 --- DE- Declination sign
21- 22 I2 deg DEd Declination (1950)
24- 25 I2 arcmin DEm Declination (1950)
27- 31 F5.2 arcsec DEs Declination (1950)
35- 38 A4 --- GlC Globular cluster name (1)
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Note (1): Five objects in this table are globular clusters with numbers
by Sargent et al., 1977AJ.....82..947S 1977AJ.....82..947S
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History: Copied by ftp at http://nostromo.sai.msu.su/m31/
(End) James Marcout, Patricia Bauer [CDS], Veta Avedisova [INASAN] 19-May-1998