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NGC7023 - The Iris Nebula | by derrykdavis
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NGC7023 - The Iris Nebula

Also known as Caldwell 4, the Iris Nebula is reflection nebula that lies in the constellation Cepheus at a distance of about 1,300 light-years away.

 

Taken over several nights in June & July 2018 from Campbell, CA, USA. Sky: 18.80 mag/arcsec^2

 

Total integration: 1255 mins (20 hr 55 mins)

 

Details, Equipment, & Software:

Telescope: Astro-Tech AT10RCT (FL2000mm f/8)

Camera: SBIG STF-8300m (-10°C)

Filter: Astrodon 36mm LRGB & Hα 5nm

Guide: OAG-8300 with QHY5III174

Focuser: Moonlite CSL w/ high res stepper motor

Mount: Astro-Physics AP1100GTO

Capture: Sequence Generator Pro

Frames:

Astrodon L: 117x300s

Astrodon R: 46x300s

Astrodon G: 44x300s

Astrodon B: 44x300s

Stacking/Final Processing: Pixinsight

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Uploaded on September 3, 2018