III/112 Spectral Classes in Kapteyn areas 2-43 (Bartaya, 1983)
Catalogue of Spectral and Luminosity classes of 10396 stars in Kapteyn areas 2-43 Bartaya R.A. <Bull. Abastumani Astrophys. Observ. 51 (1979)> =1979AbaOB..51....1B <Bull. Inform. CDS 24, 93 (1983)>
ADC_Keywords: Selected areas ; Spectral types Description: The present catalogue is compiled on the basis of the spectral data obtained with the 70-cm meniscus telescope of Abastumani Astrophysical Observatory using the 8° objective prism (dispersion 166Å/mm near Hγ; in the short-wave region, the spectrum extends up to 3500Å). We have confined ourselves to relatively bright stars (11.5 photographic mag.), whose spectra were obtained by us on Kodak IIa-O plates. The spectra were broadened up to 0.4mm for an exposure of 20min. We succeeded to carry out a quite homogeneous mass two-dimensional MK classification, separating also peculiar stars. In order to detect also Hα emission stars and M, S, C type stars in the surveyed Kapteyn areas (KA), panchromatic plates were also taken. The catalogue contains 173 stars with peculiarities in the spectrum, in particular Ap, Am, BaII and composite spectrum stars, as well as 30 Be, 800 M-type, and a few S, R, N and WR stars. The data for all KA's are uniform not only in the sense of classification accuracy (the whole classification is done by one person - the author of the present catalogue), but also in the sense of penetration: the areas were photographed both on Kodak IIa-O and ORWO 2P-3 plates with the same maximum exposure for each plate and they all cover areas of 4.5x4.5°. The errors of our determinations are: ±0.6 for spectral subtype and ±0.5 for luminosity class. The stars in the KA's are arranged in the Catalogue by increasing right ascension. The stars are numbered according to zones of 1° in declination. The printed catalogue is provided with suitable stellar charts for separate KA's reproduced from the Lick Catalogue. The reference system on the charts refers to 1950 epoch and it is plotted according to the Smithsonian Astrophysical Observatory (SAO) catalogue. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 102 10395 The catalogue of spectral classes notes.dat 47 97 Comments to flagged stars
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1 A1 --- ComFlag [*] '*' if a comment exists in file notes.dat 5- 13 A9 --- ID *Star Designation 16- 24 A9 --- BD Designation on BD catalog 25- 30 I6 --- HD [1,225300]? Designation in HD (Cat. III/135) 33- 34 I2 h RAh ? Right Ascension 1950 (hours) from SAO 36- 37 I2 min RAm ? Right Ascension 1950 (minutes) from SAO 39- 42 F4.1 s RAs ? Right Ascension 1950 (seconds) from SAO 44 A1 --- DE- Declination 1950 (sign) 45- 46 I2 deg DEd ? Declination 1950 (degrees) from SAO 48- 49 I2 arcmin DEm ? Declination 1950 (minutes) from SAO 51- 52 I2 arcsec DEs ? Declination 1950 (seconds) from SAO 55- 59 F5.2 mag Pmag ? Photographic magnitude 60 A1 --- u_Pmag [!:] Uncertainty flag 61 A1 --- n_Pmag [V] Variability flag 63- 73 A11 --- SpType *Spectral classification 74 A1 --- u_SpType Uncertainty flag on SpType 77- 80 I4 --- BSD *? Bergedorfer Spektral Durchmusterung 81- 86 I6 --- SAO [1,258997]? SAO (Cat. I/131) designation 89- 94 F6.3 arcsec/yr pmRA ? Proper motion in RA*cos(DE) (from AGK3) 97-102 F6.3 arcsec/yr pmDE ? Proper motion in DE (from AGK3)
Note on ID: Each star is designated by 3 numbers separated by a blank "K D N", where K = Kaptyen area number (between 2 and 43) D = Declination zone (degrees) N = Running number within the zone. Note on SpType: the spectrum is formatted as follows: +0 (byte 63): luminosity prefix (d g c) if any; +1 (byte 64): spectral temperature class +2 (byte 65): spectral temperature subclass +3 (byte 66): peculiarity +4 (bytes 67-69): luminosity class +7 (byte 70): '-' if luminosity class is uncertain +8 (byte 71): '+' is spectrum is double +9 (byte 72): secondary spectrum, if existing Note on BSD: The Bergedorfer Spektral Durchmusterung was prepared by Schwassmann A. and van Rhijn P.J., and published by the Hamburger Sternwarte in Bergedorf between 1935 and 1953 in 5 volumes. Note that only the second part of the BSD designation is stored in this column: the Kapteyn Area number (the first number in the ID column) must be added in front of the contents of this column to generate the complete BSD designation.
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 9 A9 --- ID Star Designation, as in catalog.dat 11- 47 A37 --- Text Text of note
History: The description above was adapted from the author's (R.A. Bartaya) manuscript. Misaligned data and erroneous positions were corrected at CDS for about 50 SAO stars, and the asterisk in ComFlag column was corrected according to the contents of notes.dat.
(End) Francois Ochsenbein [CDS] 18-Aug-1998
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|