Iris Nebula (NGC 7023)

+67° 45′+68° 00′+68° 15′+68° 30′21ʰ 00ᵐ21ʰ 05ᵐIris Nebula (NGC 7023)HD 200775NE
Filters
L2 hR1 h 5 minG1 h 10 minB1 hHα1 h 5 minOIII50 minSII50 min
Category

How it was taken

Capture

Date
Exposure
8 h
Frames
96
Field center
21ʰ 01ᵐ 44ˢ +68° 10′
Field of view
52′ × 35′
Scale
0.6″ per pixel
Rotation
212° from north
Focal length
1000 mm, f/5
Views
477

Equipment

Telescope
Sky-Watcher BK2001P
Camera
ASI ZWO 1600MM Pro
Mount
Sky-Watcher HEQ5 Pro
Filter
ZWO L, R, G, B, Ha, OIII, SII (1.25")
Filter wheel
ZWO EFW 8x31mm
Focuser
ZWO EAF
Guide scope
Sky-Watcher 9x50 Finder
Guide camera
ASI 120mm

Shooting history of NGC 7023Each photo is a separate processing

Since 2018, the exposure has grown from 54 min to 8 h

  1. 4 Sept 2021this photo

    8 h · 96 frames

  2. 8 h · 96 frames

  3. 1 h 29 min · 89 frames

  4. 54 min · 54 frames