The Stellar Data File at Dearborn Observatory
The majority of entries for MK Spectral Classifications in the Kennedy & Buscombe (1974) catalogue referred to stars brighter than 9th magnitude with H. D. numbers. Accordingly, the file was arranged in sequence corresponding to right ascension for 1900, although the co-ordinates were actually listed for the epoch 2000, in accordance with an earlier precept established in the IAU.
1967 ◽
Vol 31
◽
pp. 469-471
1978 ◽
Vol 48
◽
pp. 433-435
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2020 ◽
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