Collinder 21

Number of stars per data source

	Reference  407 :   50 stars

References

 407
Villanova S., Carraro G., de la Fuente Marcos R., Stagni R.
(2004) Astron. Astrophys. 428, 67
NGC 5385, NGC 2664 and Collinder 21: Three candidate open cluster remnants
2004A&A...428...67V