NGC 2546

Number of stars per data source

	Reference  202 :    1 star
	Reference  213 :    1 star
	Reference  999 :   13 stars

202: Morgan W.W., Code A.D., Whitford A.E.; (1955) Astrophys. J. Suppl. 2, 41; Studies in galactic structure. II. Luminosity classification for 1270 blue giant stars; 1955ApJS....2...41M
213: Garrison R.F., Hiltner W.A., Schild R.E.; (1977) Astrophys. J. Suppl. 35, 111; MK spectral classifications for southern OB stars; 1977ApJS...35..111G
999: Houk N., Cowley A.P., Smith-Moore M.; University of Michigan (Ann Arbor) Vol 1 (1975), Vol 2 (1978), Vol 3 (1982), Vol 4 (1988), Vol 5 (1999); The University of Michigan Catalogue of two-dimensional Spectral Types for the HD stars; 1975mctd.book.....H