NGC 1027
Number of stars per data source
Reference 345 : 1 star
Reference 504 : 1 star
References
- 345
- Olsen E.H.
- (1983) Astron. Astrophys. Suppl. 54, 55
- Four-colour ubvy and Hbeta photometry of A5 to G0 stars brighter than 8.3m
- 1983A&AS...54...55O
- 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