Sharpless 138
Number of stars per data source
Reference 251 : 424 stars
References
- 251
- Deharveng L., Zavagno A., Nadeau D., Caplan J., Petit M.
- (1999) Astron. Astrophys. 344, 943
- Sh 138: a compact HII region excited by a very young cluster
- 1999A&A...344..943D