Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7023
NGC7023 - The Iris Nebula, Derryk
NGC7023 - The Iris Nebula
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NGC7023 - The Iris Nebula

NGC7023 - The Iris Nebula, Derryk
NGC7023 - The Iris Nebula
Powered byPixInsight

NGC7023 - The Iris Nebula

Equipment

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Acquisition details

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Description

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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NGC7023 - The Iris Nebula, Derryk