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III/223   12th General Catalogue of MK Spectral Classification  (Buscombe+ 1995)

MK Spectral Classifications - Twelfth General Catalog Buscombe W., Foster B.E. <Northwestern University, Evanston Illinois (1995)>
ADC_Keywords: Spectral types ; Photometry, UBV Description: This is the twelfth in a series of catalogs of MK spectral types and UBV photometry issued from Dearborn Observatory. It is based on an extensive search of literature published up to early 1995. Each catalog is essentially self-contained, with its separate selection of stars listed in order of increasing right ascension. Some classifications (indicated between parentheses) are inferred from photometric or astrometric considerations. The preferred identification is from the Henry Draper Catalog or the General Catalog of Variable Stars, with a Durchmusterung or other alternative as space permits. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file mk12.dat 83 15401 Data for field stars 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
See also: III/52 : 3rd General Catalogue of MK Spectral Classification (Buscombe 1977) III/189 : 7th-11th Catalogues of MK Spectral Classification (Buscombe+ 1994) III/206 : 13th General Catalog of MK Spectral Classification (Buscombe 1998) III/222 : 14th General Catalog of MK Spectral Classification (Buscombe 1999) III/233 : Catalogue of Stellar Spectral Classifications (Skiff, 2003) Byte-by-byte Description of file: *.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Star Identification for star 14- 15 I2 h RAh Right Ascension (J2000) hour 17- 20 F4.1 min RAm ?Right Ascension (J2000) minute 23 A1 --- DE- ?Declination sign 24- 25 I2 deg DEd ?Declination (J2000) degree 27- 28 I2 arcmin DEm ?Declination (J2000) minute 29 A1 --- u_DEm [: ] DEm uncertain 31 A1 --- f_SpType [(] Spectral type inferred from photometry 32- 52 A21 --- SpType MK spectral type 53 A1 --- r_SpType [* ] Asterisk = type from definers of MK 54 A1 --- f_Vmag [< ] Brackets mean average over cycle 55- 59 A5 mag Vmag ?Johnson V magnitude 60 A1 --- --- [> ] Brackets mean average over cycle 61 A1 --- f_B-V [< ] Brackets mean average over cycle 62- 66 F5.2 mag B-V ?B-V color 67 A1 --- --- [> ] Brackets mean average over cycle 68- 72 A5 mag U-B ?U-B color 74- 77 A4 --- Rem Questions 78- 83 A6 --- OName Alternate identification, usually HD
History: * 08-Apr-1997: Originally ingested as 3189A. (ADC) * 05-Jul-2001: This was incorrectly listed as superseded by 3206, the 13th General Catalog of MK Classifications, in December 1998. It was reingested with this revised ReadMe file under a new ID number of 3223. (N. Odegard, ADC) Acknowledgements: Courtesy of William Buscombe, Dearborn Observatory with computing assistance from Bruce E. Foster.
(End) Nancy G. Roman, N. Odegard [SSDOO/ADC] 05-Jul-2001
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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