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Stephan's Quintet

Also known as HCG092

Stephan's Quintet is a group of galaxies in the constellation Pegasus, about 283.76 million light-years from Earth.

Compact group of five galaxies

Stephan's Quintet: a sky-survey photograph of its field
Sky survey view (DSS2 colour, or a backup survey)

Facts

TypeGroup of galaxies
ConstellationPegasus
Position (J2000)22h 35m 58s, +33° 57′
Distance283.76 million light-years (its light set off about 283.76 million years ago)
Size on the sky3.2′ × 3.2′ (the full Moon is about 31′)
FilterNo filter (It shines in starlight of every colour, so a nebula filter would only dim it; a dark sky helps more.)
Redshiftz = 0.0215
Studied in486 scientific papers (SIMBAD)

When and how to see it

Stephan's Quintet is highest in the sky at midnight in August. From India (about 20° N) it climbs to about 76° above the horizon; from 50° N, to about 74°.

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 Pegasus

Everything in Pegasus · All 88 constellations · All sky objects

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