IC 4996
Number of stars per data source
Reference 202 : 2 stars
Reference 207 : 3 stars
Reference 211 : 2 stars
Reference 867 : 2 stars
References
- 202
- Morgan W.W., Code A.D., Whitford A.E.
- (1955) Astrophys. J. Suppl. 2, 41
- Studies in galactic structure. II. Luminosity classification for 1270 blue giant stars
- 1955ApJS....2...41M
- 207
- Hoag A.A., Applequist L.
- (1965) Astrophys. J. Suppl. 12, 215
- Distance moduli of open clusters
- 1965ApJS...12..215H
- 211
- Walborn N.R.
- (1971) Astrophys. J. Suppl. 23, 257
- Some spectroscopic characteristics of the OB stars: An investigation of the space distribution of certain OB stars and the reference frame of the classification
- 1971ApJS...23..257W
- 867
- Barbier M.
- (1963) Publ. Obs. Haute-Provence 6 no 36
- La mesure des vitesses radiales au prisme objectif. XV. 7eme liste de vitesses radiales determinees au prisme objectif a vision directe
-