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III/171        MK Classifications for F- and G-type stars   (Harlan, 1969-1981)

MK Classifications for F- and G-type stars Harlan E.Q. <Astron. J. 74, 916 (1969); 75, 507 (1970); 79, 682 (1974); 86, 1896 (1981)> =1969AJ.....74..916H =1970AJ.....75..507H =1974AJ.....79..682H =1981AJ.....86.1896H =2012yCat.3171....0H
ADC_Keywords: MK spectral classification Keywords: stars: spectral classification Description (from B. Skiff): MK spectral classifications are given for 1051 mainly F- and G-type stars between mag 5.0 and 7.5. The types were determined from slit spectrograms using the 36-inch refractor at Lick Observatory. The prismatic dispersion was 75Å/mm at H-gamma, widened 0.6mm, on Kodak IIa-O plates. The results published in four papers between 1969 and 1981 are combined here. The original tables contained HD numbers, approximate coordinates, and magnitudes, along with the new types and HD types. Some notes were included. In this file the positions have been replaced with precise coordinates from Tycho-2 or Hipparcos-related catalogues for epoch and equinox J2000, and more accurate V magnitudes substituted. The HD types are omitted. Component designations for multiple stars have been carefully considered and sometimes put on separate lines. Additional descriptive remarks are added to Harlan's notes, mainly remarking on double stars and stars with significant proper motion. The spectral types are also included in B. Skiff's "Catalogue of Stellar Spectral Classifications" (B/mk). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file paper1.dat 83 311 MK classification in paper I (1969AJ.....74..916H) paper2.dat 83 166 MK classification in paper II (1970AJ.....75..507H) paper3.dat 83 462 MK classification in paper III (1974AJ.....79..682H) paper4.dat 83 112 MK classification in paper IV (1981AJ.....86.1896H)
See also: B/mk : Catalogue of Stellar Spectral Classifications (Skiff, 2012) Byte-by-byte Description of file: paper*.dat
Bytes Format Units Label Explanations
1- 14 A14 --- Name Star name (HD number or other) 16- 17 I2 h RAh Right Ascension (J2000) hour 19- 20 I2 min RAm Right Ascension (J2000) minute 22- 26 F5.2 s RAs Right Ascension (J2000) second 28 A1 --- DE- Declination sign 29- 30 I2 deg DEd Declination (J2000) degree 32- 33 I2 arcmin DEm Declination (J2000) minute 35- 38 F4.1 arcsec DEs Declination (J2000) second 41- 43 F3.1 mag Vmag V magnitude 46- 58 A13 --- SpType MK spectral type 63- 83 A21 --- Remarks Comments (from author and B. Skiff)
History: Prepared by B. Skiff (Lowell Obs.)
(End) Francois Ochsenbein [CDS] 28-Jun-2005
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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