NGC 1664
Number of stars per data source
Reference 307 : 1 star
Reference 426 : 2 stars
Reference 504 : 1 star
References
- 307
- Westin T.N.G.
- (1982) Astron. Astrophys. Suppl. 49, 561
- Four-color and Hbeta photometry for O-A0 type stars in three regions near the galactic equator
- 1982A&AS...49..561W
- 426
- Alania I.F., Abuladze O.P., West R.M.
- (1989) Astron. Astrophys. Suppl. 77, 333
- uvby beta Photometry of peculiar B and A stars, discovered at Abastumani
- 1989A&AS...77..333A
- 504
- Olsen E.H.
- (1993) Astron. Astrophys. Suppl. 102, 89
- Stromgren four-colour uvby photometry of G5-type HD stars brighter than mv = 8.6
- 1993A&AS..102...89O