III/60 General Catalogue of S Stars (Stephenson 1976)
General Catalogue of S Stars
Stephenson C.B.
<Publ. Warner & Swasey Obs. 2, No. 2 (1976)>
ADC_Keywords: Stars, S
Description:
The catalog is intended to list all S stars having known positions of
at least roughly the precision of the Henry Draper Catalogue. An S
star is a star in whose spectrum the bands of the ZrO molecule are
detectable, ordinarily without needing sufficient spectral resolution
to resolve the individual rotational lines of a band in its stronger
parts. The majority of the stars in the catalog were classified on the
basis of the band with a head near 6474 Angstroms, in the red system
of ZrO. The catalog contains right ascension and declination
(B1900.0), photographic, visual, or infrared magnitudes, spectral
types, and designations that give the star's occurrence in various
finding lists, including an unpublished one.
Nomenclature Note:
There are three catalogues of S stars by Stephenson, each
being numbered from 1. Care should therefore be taken to
make a clear distinction between
a) The present catalogue; these objects are designated "GCSS"
b) The second edition published in 1984 (catalog III/168)
these objects are designated "CSS" (Compilation on
galactic S stars), also available as Catalogue III/168
c) A complement to the Second Edition published in 1990
(=1990AJ....100..569S 1990AJ....100..569S), designated by "CSS2"
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
adc-doc.txt 80 728 ADC Documentation by Theresa A. Nagy (1979)
catalog.dat 198 741 The General Catalog of S Stars
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- GCSS [1/741] Catalogue number
6- 7 I2 h RAh Hours RA, Equinox=B1900, Epoch=1900.0
9- 12 F4.1 min RAm Minutes RA
14- 17 F4.1 s RAs [0/60[? Seconds RA
19 A1 --- DE- Sign Dec
20- 21 I2 deg DEd Degrees Dec, Equinox=B1900, Epoch=1900.0
23- 26 F4.1 arcmin DEm Minutes Dec
28- 29 I2 arcsec DEs [0/60[? Seconds Dec
30- 31 A2 --- u_DEs [: ] ':' or '::' if precision less than quoted
33- 37 F5.2 mag Pmag [6/17]? Photographic magnitude
38 A1 --- u_Pmag ':' if precision less than quoted
39- 43 F5.2 mag Vmag [5/15]? V magnitude in the UBV system
44 A1 --- u_Vmag ':' if precision less than quoted
45- 48 F4.1 mag Imag ? Infrared magnitude
49 A1 --- u_Imag ':' if precision less than quoted
51- 80 A30 --- SpType Spectral type or S Star class (see adc-doc.txt)
81-170 A90 --- Names Designations in other sources (see adc-doc.txt)
171-174 I4 --- --- [1/741] Catalogue number (repeated)
176-180 F5.1 deg GLON Galactic longitude
182-186 F5.1 deg GLAT Galactic latitude
188-200 A13 --- Notes Note flags, see "adc-doc.txt" file
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See also:
III/168 : Stephenson, 1984, 2nd Edition of the Catalogue of S stars
which supersedes the present catalogue.
Historical Notes:
* July 1979: the machine-readable version was keypunched at Goddard
Space Flight Center, NASA (See file "adc-doc.txt", section 4)
* October 1991: the catalogue was included on the
"Selected Astronomical Catalogs" Vol. 1 CD-ROM, directory
/spectro/sstars
* 13-Nov-1995: ReadMe file revisited at CDS
* 29-Feb-2016: Cosmetic changes at CDS (standard file names)
(End) Francois Ochsenbein [CDS] 13-Nov-1995