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