Sirius
brightest star in the night sky · with a white dwarf companion
8.6 light-years from Earth
Twice the Sun's mass and 25 times as bright. Its faint partner Sirius B is a white dwarf: a Sun's worth of matter squeezed into a ball the size of Earth.
- 8.6 light-years · 25 times the Sun's luminosity
- Sirius B: 12,000 km across, 1 solar mass
- kind
- star
- size
- 2,380,000 km across
- with it
- Sirius B
More stars & stellar remnants
- Epsilon Eridani young Sun-like star with debris belts
- Tau Ceti nearby Sun-like star
- Barnard's Star red dwarf
- Altair rapidly rotating A star
- Alpha Centauri nearest Sun-like star
- Proxima Centauri red dwarf
- Vega fast-spinning A star seen pole-on
- Arcturus orange giant