Trumpler 9
Number of stars per data source
Reference 434 : 26 stars
Reference 877 : 1 star
Reference 1047 : 14 stars
References
- 434
- Vogt N., Moffat A.F.J.
- (1972) Astron. Astrophys. Suppl. 7, 133
- Southern open clusters I. UBV and Hbeta photometry of 15 clusters between galactic longitudes 231 and 256
- 1972A&AS....7..133V
- 877
- Loden L.O.
- (1969) Ark. Astron. 5, 149
- Photometric standard sequences in Puppis
- 1969ArA.....5..149L
- 1047
- Pismis P.
- (1970) Bol. Obs. Tonantzintla Tacubaya 5, 293
- Studies on star clusters. The open cluster Tr 9
- 1970BOTT....5..293P