NGC 2571

Number of stars per data source

	Reference  786 :    1 star
	Reference  999 :    1 star

786: Keenan P.C.; (1973) IAU Symp. 54, 68; Luminosity calibration of giants and supergiants, G0-M5; 1973IAUS...54...68K
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