Bright Dog Stars on December evenings
Tonight – or any night in December or for several months to come – look for the two Dog Stars. They’ll both be up by around mid-evening, or roughly 9 to 10 p.m. You should be able to see these brilliant stars in spite of the glare from a waning gibbous moon.
The brighter of the two Dog Stars is Sirius, which makes up the neck of the constellation Canis Major, the Greater Dog. Sirius is easy to spot, because it also happens to be the brightest of all the stars we see in our night sky.
The other Dog Star is Procyon in the constellation Canis Minor the Lesser Dog. Procyon means “before the Dog” because this star’s rising signals that Sirius, the Dog star, is soon to follow Procyon into the sky.
http://earthsky.org/tonight/find-dog-stars-on-december-late-evenings
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The white dwarf star that orbits Sirius, difficult to catch because it's close in and dim compared to very bright Sirius. But here it is:
At the bottom.
And yes, it's called "The Pup".
