Berkeley 30

Number of stars per data source

	Reference  217 : 1134 stars
	Reference  389 :  154 stars

References

 217

Ann H.B., Lee M.G., Chun M.Y., Kim S.-L. Jeon Y.-B., Park B.-G., Yuk I.-S., Sung H., Lee S.H.

(1999) J. Korean Astron. Soc. 32, 7

BOAO photometric survey of galactic open clusters. I. Berkeley 14, Collinder 74, Biurakan 9, and NGC 2355

1999JKAS...32....7A

 389

Hasegawa T., Malasan H.L., Kawakita H., Obayashi H., Kurabayashi T., Nakai T., Hyakkai M., Arimoto N.

(2004) Publ. Astron. Soc. Japan 56, 295

New photometric data of old open clusters in the anti-galactic center region

2004PASJ...56..295H