Iris Nebula

Designation: NGC 7023 / C 4
Hemisphere: Northern
Constellation: Cepheus
Distance: 1,400 light years
Object type: Reflection nebula


The Iris Nebula is a reflection nebula lying approx. 1,400 light years away, in the constellation Cepheus. It takes its characteristic blue hue from the light scattered by its central star and it’s surrounded by plenty of dark interstellar dust. NGC 7023 actually refers to the star cluster within the nebula although the cluster and the reflection nebula are bound together.


Mount: Celestron Evolution
Main Telescope: William Optics ZS73EDii
Main camera: ZWO ASI183MC-Pro
Main camera filter: Optolong L-Pro

Acquisition details

Total integration time: 3 hours
Acquisition: SharpCap Pro
Processing: APP – PixInsight – GIMP
Location: Luxembourg

Where the universe begins…