Observation by Martin Butcher: B33 - The Horsehead Nebula
2010 Dec 13 - 00:40
2021 Apr 05 - 16:17
Position angle: -91°26'
2°34' × 1°43'
- Meade LX-90 8" telescope fitted to its field tripod by an equatorial wedge.
- LX-90 Periodic Error Correction enabled.
- Dew Removal straps fitted to telescope and camera lens
- Telescope and camera powered by Mains Power.
- Stock Canon 40D with 200mm f/2.8 lens stopped down to f/4
- Telescope driven but unguided
Sixty sub-exposures each 3 minutes long taken at ISO800
Isle of Colonsay
B33 - The Horsehead Nebula