NGC 225
Number of stars per data source
Reference 64 : 12 stars
Reference 221 : 2 stars
Reference 309 : 14 stars
Reference 320 : 2 stars
References
- 64
- Svolopoulos S.N.
- (1962) Astrophys. J. 136, 788
- Spectral classifications in nine open clusters
- 1962ApJ...136..788S
- 221
- Sowell J.R
- (1987) Astrophys. J. Suppl. 64, 241
- Yellow evolved stars in open clusters
- 1987ApJS...64..241S
- 309
- Lattanzi M.G., Massone G., Munari U.
- (1991) Astron. J. 102, 177
- Memberships and CM diagrams of young open clusters: I. NGC 225
- 1991AJ....102..177L
- 320
- Sears R.L., Sowell J.R.
- (1997) Astron. J. 113, 1039
- Spectral classification of "photometric subgiants" in open clusters
- 1997AJ....113.1039S