Berkeley 33
Number of stars per data source
Reference 67 : 1856 stars
Reference 389 : 163 stars
Reference 436 : 382 stars
References
- 67
- Mazur B., Kaluzny J., Krzeminski W.
- (1993) Monthly Notices Roy. Astron. Soc. 265, 405
- Photometric study of the intermediate-age open cluster Be 33
- 1993MNRAS.265..405M
- 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
- 436
- Carraro G., Geisler D., Baume G., Vazquez R., Moitinho A.
- (2005) Mon. Not. R. Astron. Soc. 360, 655
- The intermediate-age open clusters Ruprecht 4, Ruprecht 7 and Pismis 15
- 2005MNRAS.360..655C