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III/206  13th General Catalogue of MK Spectral Classification  (Buscombe 1998)

MK spectral classifications, 13th General Catalogue, Epoch 2000, including UBV photometry Buscombe W. <Northwestern Univ., Evanston, Illinois ISBN 0-939160-11-3 (1998)>
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. The annex files (various clusters and associations, and SMC) are from the revised 12th catalogue. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file mk13.dat 80 19208 The 13th General Catalogue ic1805.dat 80 57 Data for IC1805 ngc752.dat 80 125 Data for NGC 752 ngc1977.dat 80 268 Data for Orion trapezium ngc3293.dat 80 41 Data for NGC 3293 ngc6087.dat 80 38 Data for NGC 6087 ngc6475.dat 80 161 Data for NGC 6475 (M 7) orion.dat 80 244 Data for Orion association scooph.dat 80 168 Data for upper Sco and Oph association smc.dat 80 935 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 (B2000) hour 17- 20 F4.1 min RAm *?Right Ascension (B2000) minute 22 A1 --- DE- Declination sign 23- 24 I2 deg DEd *?Declination (B2000) degree 26- 27 I2 arcmin DEm *? Declination (B2000) minute 28 A1 --- u_DEm [:] DEm uncertain 30- 51 A22 --- SpType MK type 52 A1 --- n_SpType [*] '*' for a standard 53 A1 --- n_Vmag [B] 'B' when Vmag represents a B magnitude 54- 58 F5.2 mag Vmag ? Johnson V magnitude 59 A1 --- u_Vmag *[:m] Uncertainty or mean flag on Vmag 60- 64 F5.2 mag B-V ? Johnson B-V color 65 A1 --- u_B-V *[m] mean flag on B-V 66- 70 F5.2 mag U-B ? Johnson U-B color 75- 80 A6 --- Name Alternate identification, usually HD
Note on RAm, DEd, DEm: the columns RAm and DEd are blank only for a few stars in files ngc1977.dat and ngc6087.dat Note on u_Vmag, u_B-V: The letter 'm' (for mean) is used for mean magnitude of variables (the magnitude is printed within angle brackets like <14.8>)
Acknowledgements: William Buscombe, Derborn Observatory
(End) Francois Ochsenbein [CDS] 10-Dec-1998
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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