NGC 2281
Number of stars per data source
Reference 1 : 2 stars
References
- 1
- Stromgren B., Perry C.L.
- (1965) Astron. J. 71, 709
- Institute for Advanced Study, Princeton, N. J. second version, unpublished Crawford D.L., Barnes J.V., Faure B.Q., Golson J.C. Photoelectric Hbeta photometry for 1217 stars brighter than V = 6.5 mag
- 1965AJ.....71..709