Sky of Your Day
  1. Stars with a name
  2. Pollux

Pollux

β Geminorum

Pollux is an orange giant, in the constellation Gemini. The light you see from it tonight left it around 1992.

Where to find it

From mid-northern latitudes, such as New York, Rome or Tokyo, it is best seen in the evening sky in January, February, March, April, and December.

Bright enough to see even from a city. Apparent magnitude 1.16.

What it’s like

It gives off 32 times as much light as the Sun.

Its surface is at about 4,800 degrees.

It is 33.8 light years away: 320 trillion kilometres.

It is the star of people born around 1992: the light that left it then is reaching Earth now.

Other named stars in Gemini