Deep-Sky Objects, Galaxies, Stars The extinct constellation Musca Borealis, open cluster Collinder 464, and spiral galaxy NGC 2403
Deep-Sky Objects, Stars The double star Alnitak, open cluster NGC 1817, and the Oyster Nebula (NGC 1501)
Deep-Sky Objects What are typical star-to-star distances in globular clusters compared to stellar distances in our region of the galaxy?
