Necklace Nebula
Also known as PN G054.2-03.4
Necklace Nebula is a RS cvn variable star in the constellation Sagitta, about 19,030 light-years from Earth.
Planetary nebula with a ring of bright knots, in Sagitta
Facts
| Type | RS cvn variable star |
|---|---|
| Constellation | Sagitta |
| Position (J2000) | 19h 43m 59s, +17° 09′ |
| Distance | 19,030 light-years (its light set off about 19,030 years ago) |
| Size on the sky | 0.4′ × 0.4′ (the full Moon is about 31′) |
| Filter | UHC (narrowband) filter (Glowing gas shines in a few colours of hydrogen and oxygen: a UHC filter passes those and blocks most light pollution and sky glow.) |
| Studied in | 73 scientific papers (SIMBAD) |
When and how to see it
Necklace Nebula is highest in the sky at midnight in July. From India (about 20° N) it climbs to about 87° above the horizon; from 50° N, to about 57°.
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 Sagitta
Everything in Sagitta · All 88 constellations · All sky objects
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits