However the discovery of a companion star, Sirius B, in 1862 surprised astronomers. The star that you can see with the naked eye is called Sirius A, or sometimes just Sirius. Sirius B is 10,000 ...

Around this time of year, I often get lots of inquiries concerning a certain very bright star-like object shining over toward the southern part of the sky. It's Sirius, the Dog Star, the brightest ...