Jellyfish Nebula
Also known as IC 443
Jellyfish Nebula is a supernova remnant in the constellation Gemini, about 5,190 light-years from Earth.
Supernova remnant in Gemini
Facts
| Type | Supernova remnant |
|---|---|
| Constellation | Gemini |
| Position (J2000) | 6h 16m 37s, +22° 31′ |
| Distance | 5,190 light-years (its light set off about 5,190 years ago) |
| Brightness | magnitude 12 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Size on the sky | 45′ × 25′ (the full Moon is about 31′) |
| Filter | OIII 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 in | 1,333 scientific papers (SIMBAD) |
When and how to see it
Jellyfish Nebula is highest in the sky at midnight in December. From India (about 20° N) it climbs to about 87° above the horizon; from 50° N, to about 63°. To see it you need a small telescope.
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 Gemini
Everything in Gemini · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · OpenNGC · Data sources & credits