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Alcyone

Also known as η Tau · HR 1165

Alcyone is a be star in the constellation Taurus, about 400 light-years from Earth.

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

Facts

TypeBe star (spectral type B7III)
ConstellationTaurus
Position (J2000)3h 47m 29s, +24° 06′
Distance400 light-years (its light set off about 400 years ago)
Brightnessmagnitude 2.87 (smaller is brighter; the faintest stars the eye sees are about 6)
Studied in559 scientific papers (SIMBAD)

When and how to see it

Alcyone is highest in the sky at midnight in November. From India (about 20° N) it climbs to about 86° above the horizon; from 50° N, to about 64°. 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 Taurus

Everything in Taurus · All 88 constellations · All sky objects

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