Pismis 20
Number of stars per data source
Reference 10 : 60 stars
References
10
Vazquez R.A., Will J.-M., Prado P., Feinstein A.
(1995) Astron. Astrophys. Suppl. 111, 85
A detailed study of the open cluster Pismis 20
1995A&AS..111...85V