Canis Major
There are two constellation that represent Orion's dogs - the large dog (Canis Maioris) and the small dog (Canis Minoris).
There is a constellation (group of stars) that looks like a dog. It is called Sirius.
the great dog star also known as Sirius is said to be arians companion arian was a great warrior
Canis major: The "big" dog constellation.Canis minor: The "small" dog constellation.Canes Venatici: The "hunting" dogs constellation.
Canis Major, often called The Great Dog. Sirius is sometimes called The Dog Star.
Sirius is approximately 8.7 light-years away from Earth.In order to find Sirius in the night sky, find Orion's Belt, and follow its line of stars down to the left and you will find Sirius.
The Dog Constellation in the sky is also known as Sirius. and Since Sirius Black was an animagus Dog therefore J. K. Rowling got the inspiration from there. :)
from France
There is no dog in the constellation of Orion. But just to his east are the constellations Canis Major and Canis Minor, the big and little dogs.
Canis Major.
His hunting dog
Sirius = Alpha Canis Majoris. In other words, it is the brightest star in the constellation Canis Major, or Big Dog.