Cosmos Codex Codexery

Sirius

The brightest star in the night sky.

Sirius is the brightest star in the night sky, in Canis Major, with an apparent magnitude of -1.46. It is a binary: Sirius A, a main-sequence star of type A0 or A1, and the faint white dwarf Sirius B, which orbit each other every 50 years.

At 2.64 parsecs (about 8.6 light-years) it is one of Earth's nearest neighbours. It is slowly approaching and will brighten slightly over the next 60,000 years.

Quick Facts

Type
Binary star
Constellation
Canis Major
Apparent magnitude
-1.46
Distance
2.64 pc (~8.6 light-years)

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