- Filters
- Hα2 h 25 minOIII2 h 35 minSII2 h 5 min
- Category
- Nebula
How it was taken
Capture
- Date
- Exposure
- 7 h 5 min
- Frames
- 85
- Field center
- 0ʰ 52ᵐ 57ˢ +56° 37′
- Field of view
- 59′ × 45′
- Scale
- 0.78″ per pixel
- Rotation
- 200° from north
- Focal length
- 1000 mm, f/5
- Views
- 333
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 281Each photo is a separate processing
Since 2017, the exposure has grown from 25 min to 21 h 5 min
