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 ...

Could the nearby star Sirius B explode as a type Ia supernova, like some other white dwarf stars in binary star systems have? Bruce Mason Encinitas, California A type Ia supernova occurs when a ...

The Sirius system, about 8.6 light-years from us, does include a white dwarf star (Sirius B) orbiting a companion (Sirius A). However, Sirius B is not close enough to its companion to accrete ...