NGC 6633

Number of stars per data source

	Reference   24 :  161 stars
	Reference   56 :    1 star
	Reference  638 :    1 star
	Reference  882 :   10 stars
	Reference  909 :   10 stars
	Reference 1601 :   10 stars

References

 24

Hiltner W.A., Iriarte B., Johnson H.L.

(1958) Astrophys. J. 127, 539

The galactic cluster NGC 6633

1958ApJ...127..539H

 56

Crawford D.L.

(1963) Astrophys. J. 137, 530

UBV and Hbeta photometry for the bright B8- and B9-type stars

1963ApJ...137..530C

 638

Cousins A.W.J.

(1963) Mon. Not. Astr. Soc. Sth Africa 22, 12

Photometric data for stars in the equatorial zone (third list)

1963MNSSA..22...12C

 882

Ardeberg A., Sarg K.

(1970) Ark. Astron. 5, 391

Photoelectric photometry of luminous B type stars in a Milky Way field in Cepheus

1970ArA.....5..391A

 909

Andruk V., Kharchenko N., Schilbach E., Scholz R.-D.

(1995) Astron. Nach. 4, 225

Photometric survey near the Main Galactic Meridian: 1. Photoelectric stellar magnitudes and colours in the UBVR system

1995AN......4..225A

 1601

Oja T.

(1976) private communication