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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
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:
FileName Lrecl Records Explanations
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
Byte-by-byte Description of file: *.dat
Bytes Format Units Label Explanations
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

(End) Nancy G. Roman [ADC/SSDOO] 08-Apr-1997
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

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