Trumpler 18
Number of stars per data source
Reference 517 : 3712 stars
References
517
Delgado A.J., Alfaro E.J., Yun J.L.
(2007) Astron. Astrophys. 467, 1397
Pre-main sequence stars in open clusters. I. The DAY-I catalogue
2007A&A...467.1397D