The Great Orion Nebula, M42
First astro session of 2021, and a fairly predictable subject at this time of year! Having said that, I've not imaged M42 with the 12" Newtonian 'scope for several years.
I didn't take many sub-exposures, but instead a small number each at settings between 5-seconds and 2-minutes, ISO 3200, to preserve detail in the bright inner and faint outer regions of the nebula. I stacked each set in DeepSkyStacker software and then combined them as layers.
Additional post-processing: minor curves adjustment in Canon Photo Professional; noise reduction and colour gradient correction in CyberLink PhotoDirector.
Astro-modified EOS 600D & Revelation 12" f/4 Newtonian reflector telescope.
The Great Orion Nebula, M42
First astro session of 2021, and a fairly predictable subject at this time of year! Having said that, I've not imaged M42 with the 12" Newtonian 'scope for several years.
I didn't take many sub-exposures, but instead a small number each at settings between 5-seconds and 2-minutes, ISO 3200, to preserve detail in the bright inner and faint outer regions of the nebula. I stacked each set in DeepSkyStacker software and then combined them as layers.
Additional post-processing: minor curves adjustment in Canon Photo Professional; noise reduction and colour gradient correction in CyberLink PhotoDirector.
Astro-modified EOS 600D & Revelation 12" f/4 Newtonian reflector telescope.