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Simeis 147

Also known as SNR G180.0-01.7

Simeis 147 is a supernova remnant in the constellation Taurus, about 4,250 light-years from Earth.

Faint, huge supernova remnant

Simeis 147: a sky-survey photograph of its field
Sky survey view (DSS2 colour, or a backup survey)

Facts

TypeSupernova remnant
ConstellationTaurus
Position (J2000)5h 39m 00s, +27° 49′
Distance4,250 light-years (its light set off about 4,250 years ago)
Size on the sky180′ × 180′ (the full Moon is about 31′)
FilterOIII filter (Planetary nebulae and supernova remnants shine mostly in the green light of doubly ionised oxygen: an OIII filter passes it and darkens the sky around it.)
Studied in301 scientific papers (SIMBAD)

When and how to see it

Simeis 147 is highest in the sky at midnight in December. From India (about 20° N) it climbs to about 82° above the horizon; from 50° N, to about 68°.

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