NGC 6633

Number of stars per data source

	Reference    9 :    1 star
	Reference  212 :    4 stars
	Reference  217 :    6 stars
	Reference  220 :    4 stars
	Reference  264 :    1 star
	Reference  278 :    1 star
	Reference  332 :    2 stars
	Reference  340 :    6 stars
	Reference  564 :   26 stars
	Reference 1041 :    2 stars

References

9: Moore J.H., Paddock G.F.; (1950) Astrophys. J. 112, 48; Radial velocities, spectral types and luminosity classes of 820 stars; 1950ApJ...112...48M
212: Harris G.L.H.; (1976) Astrophys. J. Suppl. 30, 451; Evolved stars in open clusters; 1976ApJS...30..451H
217: Gray R.O., Garrison R.F.; (1987) Astrophys. J. Suppl. 65, 581; The early A type stars: refined MK classification, confrontation with Stromgren photometry, and the effects of rotation; 1987ApJS...65..581G
220: Gray R.O., Garrison R.F.; (1989) Astrophys. J. Suppl. 70, 623; The late A-type stars: refined MK classification, confrontation with Stromgren photometry, and the effects of rotation; 1989ApJS...70..623G
264: Murphy R.E.; (1969) Astron. J. 74,1082; A spectroscopic investigation of visual binaries with B-type primaries; 1969AJ.....74.1082M
278: Cowley A.P.; (1972) Astron. J. 77, 750; Spectral classification of the bright B8 stars; 1972AJ.....77..750C
332: Garrison R.F., Gray R.O.; (1994) Astron. J. 107, 1556; The late B-type stars: refined MK classification, confrontation with Stromgren photometry, and the effects of rotation; 1994AJ....107.1556G
340: Gray R.O., Corbally C.J.; (2002) Astron. J. 124, 989; A spectroscopic search for lambda Bootis and other peculiar A-type stars in intermediate-age open clusters; 2002AJ....124..989G
564: Levato H., Abt H.A.; (1977) Publ. Astr. Soc. Pacific 89, 274; Spectral types in the open cluster NGC 6633; 1977PASP...89..274L
1041: Abt H.A.; (1985) Astrophys. J. 294, L103; The spectra and ages of blue stragglers; 1985ApJ...294L.103A