NGC7380 — Wizard Nebula

Wed, 17 Sep 2025 21:00:00 +0100

NGC 7380 is a young open star cluster in the constellation Cepheus, embedded in the large emission nebula catalogued as Sh2‑142. In images they appear together as the Wizard Nebula. It lies roughly 7–8 thousand light‑years away and spans nearly 100 light‑years. The cluster was discovered in 1787 by William Herschel.

The nebula’s colours come from glowing ionised gases: red is mainly hydrogen (H‑alpha), while greens and blues trace oxygen (O III) and sulphur (S II), often combined in the so‑called Hubble palette. The wizard‑like outline is not a solid object; it is sculpted by intense radiation and stellar winds from young, massive stars, shaping clumps of gas and dust where new suns can still form.

For visual observers the target is fairly challenging; it reveals itself best in long exposures and narrowband imaging, which isolates the light of specific elements from the background. Northern‑hemisphere autumn nights favour the hunt for the Wizard, making it a rewarding, detail‑rich subject for practising data processing and colour mapping.


Telescope	SkyWatcher 150/750P
Mount	motorised EQ3-2
Camera	Canon 600D (astro-mod)
Filters	Astronomik UHC 2"
Exposure	27 × 120s (54")
Bortle	5
Moon	Waning Crescent (19.31%)
Processing	Siril, Prism Deep, CosmicClarity, Gimp

Wizard Nebula on AstroT3k

NGC7380 — Wizard Nebula