Observation by Jay McNeil: Messier 42 in narrowband
2020 Dec 26 - 23:00
2021 Jan 09 - 14:35
Position angle: -0°10'
1°28' × 1°50'
- Stellarvue SV-70T scope with reducer (f/4.8)
- ZWO ASI183mm Pro Camera w/ZWO EFW filter wheel
- Astrodon 3nm Sulphur II, 5nm Hydrogen-alpha, 3nm Oxygen III filters
- piggybacked on a homebrew 10-inch f/5.4 Newtonian and riding on an AstroPhysics AP1200GTO
twenty-five 5-minute exposures and twenty-five 30-second exposures
Paducah, Kentucky, USA
Messier 42 in narrowband