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Robert Chozick | all galleries >> Galleries >> images_for_sale_detail > Iris Nebula NGC 7023
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09-Aug-2023

Iris Nebula NGC 7023

Paducah Skies Observatory

The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +7 star, SAO 19158. It shines at magnitude +6.8. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei (Alphirk). It lies 1,300 light-years away and is six light-years across. (Wikipedia)

Paducah Skies Observatory is a private observatory SW of Paducah, TX. It sits on 45 acres of native Texas grasslands and mesquite trees. The skies are 21.99 on the light pollution scale (almost Bortle 1).

This image is for sale at the Paducah Skies Observatory website:

https://paducahskiesobservatory.com/shop/ols/categories/iris-nebula

AG Optical 10 inch iDK
ZWO ASI2600MC Pro CMOS One Shot Color Camera
Baader Vario Finder mounted as Guidescope
ZWO ASI178MM Guide Camara
Astro Physics 900 GTO mount

45 exp 4 min each OSC (100 gain/20 offset)

Guided with PHD-2
Captured with The Sky X
Pre-processed and Stacked in Nebulosity 4
Post Processed in Pixinsight and Photoshop full exif


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