III/189A 12th General Catalogue of MK Classifications (Buscombe 1997)
MK Spectral Classifications - Twelfth General Catalog
Buscombe W., Foster B.E.
<Northwestern University, Evanston Illinois (1995)>
=1995msct.book.....B 1995msct.book.....B
ADC_Keywords: Spectral types ; Photometry, UBV
Description:
A file of MK spectral types and UBV photometry maintained at Dearborn
Observatory is presented here. It is based on an extensive literature
search and is up to date as of early 1995.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
mk12.dat 83 15401 The data file
ic1805.dat 83 57 Data for IC1805
ngc1977.dat 83 268 Data for Orion trapezium
ngc3293.dat 83 41 Data for NGC 3293
ngc6087.dat 83 38 Data for NGC 6087
ngc6475.dat 83 161 Data for NGC 6475 (M 7)
ngc752.dat 83 125 Data for NGC 752
orion.dat 83 244 Data for Orion association
scooph.dat 83 168 Data for upper Sco and Oph assoc.
smc.dat 83 935 Data for Small Magellanic Cloud
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Byte-by-byte Description of file: *.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Id Identification for star
14- 15 I2 h RAh Right Ascension (2000) hour
17- 20 F4.1 min RAm ?Right Ascension (2000) minute
23 A1 --- DE- ?Declination sign
24- 25 I2 deg DEd ?Declination (2000) degree
27- 28 I2 arcmin DEm ?Declination (2000) minute
29 A1 --- u_DEm [: ] DEm uncertain
31- 52 A22 --- SpType MK type
53 A1 --- r_SpType [* ] Asterisk = type from definers of
MK
54 A1 --- mag< [< ] Brackets mean average over cycle
55- 59 A5 mag V ?V magnitude
60 A1 --- mag> [> ] Brackets mean average over cycle
61 A1 --- B-V< [< ] Brackets mean average over cycle
62- 66 F5.2 mag B-V ?B-V color
67 A1 --- B-V> [> ] Brackets mean average over cycle
68- 72 A5 mag U-B ?U-B color
74- 77 A4 --- uncer Questions
78- 83 A6 --- name Alternate identification, usually HD
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(End) Nancy G. Roman [ADC/SSDOO] 08-Apr-1997