Upgren 1
Number of stars per data source
Reference 19 : 1 star
Reference 166 : 4 stars
Reference 305 : 7 stars
Reference 318 : 1 star
Reference 345 : 3 stars
Reference 468 : 3 stars
Reference 504 : 1 star
References
- 19
- Perry C.L.
- (1969) Astron. J. 74, 705
- A catalogue of four-color photometry of late F-type stars
- 1969AJ.....74..705P
- 166
- Hilditch R.W., Hill G., Barnes J.V.
- (1976) Mem. R. Astr. Soc. 82, 95
- Studies of A and F stars in the region of the north galactic pole-II
- 1976MmRAS..82...95H
- 305
- Upgren A.R., Philip A.G.D., Beavers W.I.
- (1982) Publ. Astron. Soc. Pacific 94, 229
- Upgren 1, an old cluster near the end of its life
- 1982PASP...94..229U
- 318
- Hill G., Barnes J.v
- (1982) Publ. Dominion Astrophys. Obs. XVI, 297
- Further studies of A and F stars in the region of the north galactic pole. I. uvby photometry II. beta photometry
- 1982PDAO....0..297H
- 318
- Hill G., Barnes J.v
- (1982) Publ. Dominion Astrophys. Obs. XVI, 350
- Further studies of A and F stars in the region of the north galactic pole. II. beta photometry
- 1982PDAO....0..350H
- 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
- 468
- Castelaz M.W., Persinger T., Stein J.W., Prosser J., Powell H.D.
- (1991) Astron. J. 102, 2103
- Photometry of astrometric reference stars
- 1991AJ....102.2103C
- 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