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Saiph

Also known as κ Ori · HR 2004

Saiph is a blue supergiant star in the constellation Orion, about 800 light-years from Earth.

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

Facts

TypeBlue supergiant star (spectral type B0.5Ia)
ConstellationOrion
Position (J2000)5h 47m 45s, −9° 40′
Distance800 light-years (its light set off about 800 years ago)
Brightnessmagnitude 2.06 (smaller is brighter; the faintest stars the eye sees are about 6)
Studied in590 scientific papers (SIMBAD)

When and how to see it

Saiph is highest in the sky at midnight in December. From India (about 20° N) it climbs to about 60° above the horizon; from 50° N, to about 30°. 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 Orion

Everything in Orion · All 88 constellations · All sky objects

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