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Yed Posterior

Also known as ε Oph · HR 6075

Yed Posterior is a high proper motion star in the constellation Ophiuchus, about 110 light-years from Earth.

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

Facts

TypeHigh proper motion star (spectral type G9.5IIIbFe-0.5)
ConstellationOphiuchus
Position (J2000)16h 18m 19s, −4° 41′
Distance110 light-years (its light set off about 110 years ago)
Brightnessmagnitude 3.23 (smaller is brighter; the faintest stars the eye sees are about 6)
Studied in249 scientific papers (SIMBAD)

When and how to see it

Yed Posterior is highest in the sky at midnight in May. From India (about 20° N) it climbs to about 65° above the horizon; from 50° N, to about 35°. 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 Ophiuchus

Everything in Ophiuchus · All 88 constellations · All sky objects

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