Ngc7023 Iris Nebula


Mark Griffith

Swindon, Wiltshire.

Teleskop service 12″ Richey-Chretien telescope, Skywatcher EQ8 mount,Atik 383L+ camera, Astronomik LRGB filters,
Hutech IDAS light pollution filter, Astro physics 0.67 reducer.

Blue reflection nebula. Blue colour caused by star light reflecting off surrounding dusk.

I Usually get poor results with refection nebula with my heavy light polluted garden. This one always works out well.

Two cold clear nights in a row. Short nights now so concerntrating my imaging on one object per night.

Captured eight hours of data do could be aggressive with the curve adjustment to bring out as much detail as possible.

Also used a photshop layer mask to preserve the detail near the bright central star.

Data collected on two nights. 4th & 5th April.

LRGB image with 8 hours and 50 minutes of data. 26 x Lum 9 x Red 9 x Green 9 x Blue 10 minutes exposures.