Trumpler 15 is an open cluster in the constellation Carina that lies on the outskirts of the Carina Nebula.[3] Estimated ages of the stars in Trumpler 15 suggest that the cluster is slightly older than its sibling clusters Trumpler 14 and 16.[4]
^Smith, N.; Brooks, Kate J. (December 2008), Reipurth, Bo (ed.), "The Carina Nebula: A laboratory for feedback and triggered star formation", Handbook of Star Forming Regions, vol. 2, p. 138, arXiv:0809.5081, Bibcode:2008hsf2.book..138S