Big Dog is located southeast of Orion. A simple way to the constellation, the three stars that make up Orion belt and follow the stars in a westerly direction south until the next bright star. This is Sirius in Canis Major, its brightest star in the constellation ..South of Sirius, the open cluster M41 can be found. Like all open clusters, it contains a few hundred young stars and has no special form.
Together, the stars are just bright enough to see with the naked eye in a clear night without moon. With binoculars it appears as a faint smudge and in a telescope, the cluster is easily seen, about as much as the sky full moon does.
Since the cluster appears low in the sky from northern latitudes light pollution reduced the grandeur of these clusters but its still worth a look.
Sirius also has a companion star, Sirius B. known as Sirius B was the first "white dwarf" to be discovered.
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