+68° 40′+68° 50′+69° 00′+69° 10′+69° 20′9ʰ 52ᵐ9ʰ 54ᵐ9ʰ 56ᵐ9ʰ 58ᵐBode Galaxy (M 81)HD 85743HD 85458HD 85534
- Filters
- L1 h 35 minR1 h 30 minG1 h 30 minB1 h 20 minHα4 h 5 minSII1 h 20 min
- Category
- Galaxy
How it was taken
Capture
- Date
- Exposure
- 11 h 20 min
- Frames
- 110
- Field center
- 9ʰ 55ᵐ 35ˢ +69° 04′
- Field of view
- 43′ × 31′
- Scale
- 0.59″ per pixel
- Rotation
- 286° from north
- Focal length
- 1000 mm, f/5
- Views
- 495
Equipment
- Telescope
- Sky-Watcher BK2001P
- Camera
- ASI ZWO 1600MM Pro
- Mount
- Sky-Watcher EQ6
- 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 M 81Each photo is a separate processing
Since 2017, the exposure has grown from 15 min to 11 h 20 min
