Colour-composite image of the Carina Nebula with Trumpler 15 at the top
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