NGC 2451A

Number of stars per data source

	Reference   83 :    4 stars
	Reference  101 :   20 stars
	Reference  213 :    1 star
	Reference  540 :    7 stars
	Reference  557 :    9 stars
	Reference  999 :   25 stars

References

83: Hiltner W.A., Garrison R.F., Schild R.E.; (1969) Astrophys. J. 157, 313; MK spectral types for bright southern OB stars; 1969ApJ...157..313H
101: Hartoog M.R.; (1976) Astrophys. J. 205, 807; The frequency of peculiar A and metallic-line stars in open clusters; 1976ApJ...205..807H
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
540: Feinstein A.; (1966) Publ. Astr. Soc. Pacific 78, 301; The open cluster NGC 2451; 1966PASP...78..301F
557: Levato H., Malaroda S.; (1975) Publ. Astr. Soc. Pacific 87, 823; Spectral types in the open cluster NGC 2451; 1975PASP...87..823L
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