Delta Canis Majoris is known as Wezen, "The Weight", apparently because it has trouble rising very high from the horizon.

The star is a yellow supergiant with a visual magnitude of 1.8; it's 1800 light years away.

Wezen forms the hub of a number of stars nicely seen in binoculars. Among these, to the southwest, is epsilon CMa -- Adhara (The Virgins) -- a wide double star.

Much more attractive is the binary system to the northeast, h 3945. This is a gold primary and blue companion: 4.9 6.1; PA 55º and separation 27", an excellent test for 10x50 binoculars.