NGC 7023 (Iris Nebula) LRGB


Chris Heapy

Macclesfield, UK

Scope: TeleVue NP127is @ 660mm f/l
CCD: Atik490EX @ 1×1 binning
Mount: Losmandy G11 + Gemini
Guider: TV Pronto + Lodestar

NGC 7023 is a large dark gas/dust cloud in Casseopia with a hot star embedded in it. The gas and dust reflect the starlight resulting in the blue coloured nebula which gives the object its name. This is an LRGB composite consisting of 10 x 15min sub-frames each of Luminance, Red, Green and Blue.