About image
NGC 7023, also known as the Iris Nebula, is a reflection nebula in the constellation of Cepheus.
Probably the main star responsible for its illumination is a seventh magnitude star enveloped by the nebula, together with other less bright stars born from its dust.
The distance of this nebular complex is about 1400 light years.
(info from Wikipedia)
As can be seen in the image, all the area around NGC 7023 is rich in dust.
Technical data
Optic TS Optics 76 EDPH - Aperture 76mm, focal lenght 342mm, f/4.5
Mount Skywatcher EQ6R
Camera ZWO ASI 294MM Pro with external filter wheel 7 positions
Filters Antlia 36mm LRGB
Guiding system Artesky Ultraguide 32mm
Exposure details L 59x300" bin2 -25C
R 26x120" bin2 -15C
G 26x120" bin2 -15C
B 26x120" bin2 -15C
Gain 120, offset 30
Total integration 7h31'
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5, Topaz Denoise AI
SQM-L 21.15
Location Promiod (Aosta Valley, Italy)
Date 26/27 February 2022, 30/31 July 2022