Tag Archives: NGC 7023

26 hours of data on the Iris Nebula

Iris nebula in Cepheus 26 hours of data. By Shawn Nielsen. VisibleDark.ca

Meet the Iris Nebula in Cepheus. Also known as NGC 7023. This image represents 26 hours of data taken over 7 clear nights in May and June 2019.  The Iris Nebula is approximately 1,300 light years distance from Earth. It resides in the constellation of Cepheus from our perspective. NGC 7023 is actually the cluster […]

The Iris Nebula NGC 7023 in Cepheus

Iris Nebula NGC 7023 taken from Oliphant, Ontario in September 2017.
The Iris Nebula, NGC 7023, is a deepsky object I have imaged before. It's a mysterious looking reflection nebula. Sometimes referred to as the keyhole nebula. This colour data was taken in September from our cottage up north in Oliphant, Ontario. The night skies up there are still prestine and dark, although with the introduction [...]

NGC 7023 Iris Nebula city vs rural astro imaging

Experimental image of the Iris Nebula NGC 7023 QHY8 CCD and Zenithstar 71mm APO. Shawn Nielsen 2014
An experiment involving 3 hours of data on the same deep sky object to compare city vs rural astro imaging. One of the draw backs of living in a mid-sized city is the light pollution. Everyone has their porch lights on even though they are inside asleep, and poorly designed street lights create glare and [...]