III/18B Stellar Spectra Classified in Morgan-Keenan System (Jaschek+ 1964)
Catalogue of Stellar Spectra Classified in the Morgan-Keenan System
Jaschek C., Conde H., de Sierra, A.C.
<Publ. La Plata Obs., Ser. Astron. 28, No. 2 (1964)>
=1964PLPla..28....1J 1964PLPla..28....1J
ADC_Keywords: MK spectral classification ; Spectral types
Description:
The purpose of this catalog is to provide bibliographic references to
spectral classifications of stars in the Morgan-Keenan system
published in the literature prior to January 1963. The catalog
includes, with few exceptions, only objects contained in the
Durchmusterungen: BD, SD, CD, and CPD. Objects belonging to stellar
clusters and extragalactic nebulae were excluded from the catalog if
they are not listed in the Durchmusterungen. The catalog includes
sequential numbers, HD and DM numbers, right ascension and declination
(B1900.0), magnitudes, spectral classifications, and bibliographic
references. This machine-readable version was modified and corrected
with errata at the Astronomical Data Center/Goddard Space Flight
Center, NASA/Goddard Space Flight Center.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
adcdoc.txt 80 72 *The original ADC document
changes.txt 80 218 Changes made by ADC (Theresa A. Nagy)
mkclass.dat 125 20849 Catalog Data
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Note on adcdoc.txt:
The file summary, format description, and changes have been removed as
they are included in either the ReadMe or changes.txt
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Byte-by-byte Description of file: mkclass.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- count *Counter within a group of records
4- 9 I6 --- HD ?HD number
10- 14 A5 --- m_HD Additional designation or alternate number
15- 24 A10 --- DM Ducrhmusterung designation
25- 27 A3 --- m_DM Additional designation
28- 38 A11 --- name Alternative name
39- 40 I2 h RAh Right ascension hours (1900.0)
42- 45 F4.1 min RAm Right ascension minutes (1900.0)
47 A1 --- DE- Sign of declination
48- 49 I2 deg DEd Declination degrees (1900.0)
51- 52 I2 arcmin DEm Declination minutes (1900.0)
54- 57 F4.1 mag mag *?Magnitude (accuracy is uncertain)
59- 77 A19 --- Sp *MK Spectral type
79-102 A24 --- note *References and notes
103 A1 --- com [* ] Asterisk indicates corrected value
104-111 F8.4 rad RArad Right ascension (B1900) in radians
112-119 F8.4 rad DErad Declination (B1900) in radians
120-125 I6 --- cnt *Counter from hard copy catalog
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Note on count:
For any given star there may be as many as 11 records. The first
record of such a group gives a spectral classification and
references, while subsequent records may be used merely to continue
the list of references which gave that classification, or
subsequent records are used to give different classifications
(and associated references) for the given star.
Note on mag:
For identification purposes only
Two stars have non-digits in the magnitude field.
GM Per (line 3704) has the magnitude 9.0)
HD 38268 (line 5015) has NEB in the magnitude column
Note on Sp:
Peculiar objects are generally included; subdwarfs listed occasionally;
N, R, and S stars usually mentioned; white dwarfs omitted.
Note on note:
Each reference is given as a three digit integer followed by a blank.
The notes are coded as follows:
V variable
SB spectroscopic binary
VB visual binary
TS triple system
Note on cnt:
A counter which sequentially numbers the entries in the
hardcopy. The records in the machine readable version have
been reordered by right ascension (1900).
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(End) N. G. Roman [ADC/SSDOO] 07-Aug-1997