NGC 1857
Number of stars per data source
Reference 476 : 480 stars
Reference 516 : 320 stars
References
- 476
- Sujatha S., Babu G.S.D., Ananthamurthy S.
- (2006) Bull. Astr. Soc. India 34, 357
- Mass function of open clusters NGC 1857 and Czernik 25
- 2006BASI...34..357S
- 516
- Colegrove P.T.
- (1999) Thesis (PhD). University of Nevada, Reno
- Open cluster ages and an apparent periodicity in the history of star formation in the solar neighborhood
- 1999PhDT.......164C