NGC 2546

45 minutes exposure, Fuji Superia 400 film.
5" f/5 refractor at prime focus.

NGC 2546 is a large and scattered cluster of moderately bright stars in southern Puppis. It is situated in a rich region of the Milky Way, which can make it difficult to recognise the cluster. The brightest stars are B-type main sequence stars, with only one bright, K type, orange giant star.