Graem Lourens © 2017
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NGC7023 Iris Nebula

The Iris Nebula is a reflection nebula in the constellation of Cepheus. NGC7023 consists of the starcluster withing the nebula that is responsible for the blue reflection that is visible.

Distance to earth: 1’300 lightyears
Apparent size: 15 arcminutes (0.5 x the moon)

Imaging time: 9.8 hours

Equipment:
Mount: SW AZEQ6GT
Telescope: SW Evostar 80ED
Camera: Atik 460EX Mono

Capture information:
Date: May – June 2016
Total exposure time: 9.8 hours
Color combination: LRGB

Image data:
35 x 600s LUM
3 x 8 x 600s RGB