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Pollux

Also known as β Gem · HR 2990

Pollux is a high proper motion star in the constellation Gemini, about 33.8 light-years from Earth.

Pollux: a sky-survey photograph of its field
Sky survey view (DSS2 colour, or a backup survey)

Facts

TypeHigh proper motion star (spectral type K0IIIb)
ConstellationGemini
Position (J2000)7h 45m 18s, +28° 01′
Distance33.8 light-years (its light set off about 33.8 years ago)
Brightnessmagnitude 1.14 (smaller is brighter; the faintest stars the eye sees are about 6)
Studied in1,155 scientific papers (SIMBAD)

When and how to see it

Pollux is highest in the sky at midnight in January. From India (about 20° N) it climbs to about 82° above the horizon; from 50° N, to about 68°. To see it you need the naked eye, even from a town.

Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.

For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.

More in Gemini

Everything in Gemini · All 88 constellations · All sky objects

Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits