Mark Sansom
Abell 12 Planetary Nebula at 37" of arc.
Small planetary nebula Abell 12 at magnitude 12 at a distance of 7000 light years in the constellation Orion. It just happens to be in the same line of sight as the much brighter magnitude 4 star Mu Orionis at a much closer distance of 150 light years.
Canon EOS 60D Ha Modified with a Astronomik CLS-CCD Clip-Filter @ ISO 1600 Clip-Filter @ ISO 1600
60x30 sec unguided subs with calibration frames added.
Celestron C11 at f6.3.
Tracked on a Skywatcher AZ-EQ6 mount.
Imaged from suburbia.
Processed in APP and finished off in LR.
Abell 12 Planetary Nebula at 37" of arc.
Small planetary nebula Abell 12 at magnitude 12 at a distance of 7000 light years in the constellation Orion. It just happens to be in the same line of sight as the much brighter magnitude 4 star Mu Orionis at a much closer distance of 150 light years.
Canon EOS 60D Ha Modified with a Astronomik CLS-CCD Clip-Filter @ ISO 1600 Clip-Filter @ ISO 1600
60x30 sec unguided subs with calibration frames added.
Celestron C11 at f6.3.
Tracked on a Skywatcher AZ-EQ6 mount.
Imaged from suburbia.
Processed in APP and finished off in LR.