NGC 1662

Number of stars per data source

	Reference   64 :    4 stars
	Reference   97 :   10 stars
	Reference  207 :    6 stars
	Reference  221 :    2 stars

64: Svolopoulos S.N.; (1962) Astrophys. J. 136, 788; Spectral classifications in nine open clusters; 1962ApJ...136..788S
97: Young A., Martin A.E.; (1973) Astrophys. J. 181, 805; A search for Ap stars in open clusters; 1973ApJ...181..805Y
207: Hoag A.A., Applequist L.; (1965) Astrophys. J. Suppl. 12, 215; Distance moduli of open clusters; 1965ApJS...12..215H
221: Sowell J.R; (1987) Astrophys. J. Suppl. 64, 241; Yellow evolved stars in open clusters; 1987ApJS...64..241S