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III/112 Spectral Classes in Kapteyn areas 2-43 (Bartaya, 1983)
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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)>
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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{deg} objective prism (dispersion 166{AA}/mm
near H{gamma}; in the short-wave region, the spectrum extends up to
3500{AA}).
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 H{alpha} 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{deg}.
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{deg}
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 102 10395 The catalogue of spectral classes
notes.dat 47 97 Comments to flagged 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 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)
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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.
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Star Designation, as in catalog.dat
11- 47 A37 --- Text Text of note
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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.
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(End) Francois Ochsenbein [CDS] 18-Aug-1998