III/270 Spectral Classes in Kapteyn areas 44-67 (Bartaya+, 1992)
Catalogue of Spectral and Luminosity classes of 6042 stars in
Kapteyn areas 44-67.
Bartaya R.A., Kharadze E.K.
<Bull. Abastumani Astrophys. Observ. 72 (1992)>
=1992AbaOB..72....1B 1992AbaOB..72....1B
=2013yCat.3270....0B 2013yCat.3270....0B
ADC_Keywords: Selected areas ; Spectral types
Description:
The present catalogue is the second one of the four catalogues
published according to programme of Abastumani Astrophysical
Observatory of a massive two-dimensional MK classification of stars in
115 kapteyn Select Areas (KA) of Northen Sky. The catalogue lists the
spectral types and luminosity classes for 5888 stars in 24 Kapteyn
areas 44-67 through the declination circle of 30°. The 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). The field of
the meniscus telescope is 4.5°x4.5°. The photo material is
taken on Kodak IIa-O, hyper-sensitized Kodak IIIa-J and in order to
detect also Hα emission stars and M, S, C type stars in the
surveyed Kapteyn areas (KA), hyper-sensitized Kodak IIIa-F plates were
also taken. A limiting apparent magnitude in V for stars in question
is 12.5 photographic mag. and for M ones - 15.0mag.
The catalogue contains 94 stars with peculiarities in the spectrum,
in particular Ap, Am, BaII and composite spectrum stars, as well as 9
emission objects, 381 M-type, 16 C and a few S and WC 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
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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 83 5888 The catalogue of spectral classes
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See also:
III/112 : Spectral Classes in Kapteyn areas 2-43 (Bartaya, 1983)
III/271 : Spectral Classes in Kapteyn areas 68-91 (Chargeishvili+, 2000)
III/275 : Spectral Classes in Kapteyn areas 92-115 (Kharadze+, 2003)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- SA *[44/67] Selected Area number
4- 9 A6 --- ID *Star Designation in SA
12- 18 A7 --- BD Designation on Bonner Durchmusterung catalog
21- 26 I6 --- HD [1,225300]? Designation in HD (Cat. III/135)
29- 30 I2 h RAh ? Right Ascension 1950 (hours) from SAO
32- 33 I2 min RAm ? Right Ascension 1950 (minutes) from SAO
35- 38 F4.1 s RAs ? Right Ascension 1950 (seconds) from SAO
40 A1 --- DE- Declination 1950 (sign)
42- 43 I2 deg DEd ? Declination 1950 (degrees) from SAO
45- 46 I2 arcmin DEm ? Declination 1950 (minutes) from SAO
48- 49 I2 arcsec DEs ? Declination 1950 (seconds) from SAO
52- 56 F5.2 mag Pmag ? Photographic magnitude
57 A1 --- u_Pmag [!:+] Uncertainty flag
58 A1 --- n_Pmag [V] Variability flag
61- 70 A10 --- SpType *Spectral classification
71 A1 --- u_SpType Uncertainty flag on SpType
74- 77 I4 --- BSD *? Bergedorfer Spektral Durchmusterung ID
79- 83 I5 --- SAO [1,258997]? SAO (Cat. I/131) designation
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Note on SA, ID:
Each star is designated by 3 numbers separated by a blank "K D N", where:
K = Kaptyen area number (the "SA" number, between 44 and 67)
D = Declination zone (degrees)
N = Running number within the zone.
Note on SpType:
the spectrum is formatted in the byte locations:
0 = (byte 60) : luminosity prefix (d g c) if any;
1 = (byte 61) : spectral temperature class
2 = (byte 62) : spectral temperature subclass
3 = (byte 63) : peculiarity
4 = (bytes 64-66) : luminosity class
7 = (byte 67) : '-' if luminosity class is uncertain
8 = (byte 68) : '+' is spectrum is double
9 = (byte 69) : secondary spectrum, if existing
Note on BSD:
The Bergedorfer Spektral Durchmusterung (BSD) 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 "SA" number) must be added in front of
the contents of this column to generate the complete BSD designation.
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Acknowledgements:
Ketevan Chargeishvili, ketevan.chargeishvili(at)iliauni.edu.ge
(End) Raisa Bartaia [AbAO, Goegia], Patricia Vannier [CDS] 04-Nov-2013