Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Iris Nebula  ·  NGC 7023  ·  T Cep  ·  VdB139
Getting plate-solving status, please wait...
The Iris Nebula - NGC 7023, 



    
        

            Jérémie
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The Iris Nebula - NGC 7023

Getting plate-solving status, please wait...
The Iris Nebula - NGC 7023, 



    
        

            Jérémie
Powered byPixInsight

The Iris Nebula - NGC 7023

Imaging telescopes or lenses: TS-Optics TSQ-71ED

Imaging cameras: ZWO ASI 183 MM PRO

Mounts: iOptron Skyguider Pro

Guiding telescopes or lenses: ZWO 30F4 Miniscope

Guiding cameras: ZWO ASI 120 MM Mini

Software: Adobe Photoshop CC 2020  ·  Pleiades Astrophoto S.L. PixInshight 1.8

Filters: Astronomik UV-IR Block L3 1.25’’  ·  Astronomik Deep Sky R 1.25"  ·  Astronomik Deep Sky G 1.25"  ·  Astronomik Deep Sky B 1.25"  ·  Astronomik UHC-E 2"

Accessory: ZWO EAF  ·  ZWO ASIAIR PRO


Dates:Oct. 11, 2020Dec. 18, 2020Dec. 20, 2020Dec. 23, 2020

Frames:
Astronomik Deep Sky B 1.25": 217x60" (3h 37') (gain: 120.00) -15C bin 2x2
Astronomik Deep Sky G 1.25": 102x60" (1h 42') (gain: 120.00) -15C bin 2x2
Astronomik Deep Sky R 1.25": 74x60" (1h 14') (gain: 120.00) -15C bin 2x2
Astronomik UV-IR Block L3 1.25’’: 120x15" (30') (gain: 120.00) -15C bin 1x1
Astronomik UV-IR Block L3 1.25’’: 257x60" (4h 17') (gain: 120.00) -15C bin 1x1

Integration: 11h 20'

Avg. Moon age: 10.61 days

Avg. Moon phase: 37.98%

Bortle Dark-Sky Scale: 8.00


Astrometry.net job: 4110550

RA center: 21h 2' 15"

DEC center: +68° 5' 0"

Pixel scale: 1.403 arcsec/pixel

Orientation: -91.341 degrees

Field radius: 1.189 degrees


Resolution: 5000x3500

Locations: Fontenay backyard, Fontenay sous Bois, Val de Marne, France

Data source: Backyard

Description

Due to bad weather conditions, I took me a month to gather the data required to produce a first image of the Iris Nebula.

I started good with 4+ hours on luminance, and could do the same for the blue filter, but green and red - particularly red - suffered from bad weather. I could only gather 20 minutes without clouds on red, not enough to get rid of satelites trails, so I integrated even the most cloudy frames.... and heavily used DBE in Pixinsight to have something manageable...

Therefore, lots of hours in Pixinsight and Photoshop to produce that image. Would have loved being able to push it more, but it require more signal, as always.

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