NGC 281, is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way’s Perseus Spiral Arm.
It was discovered by Edward Emerson Barnard in August 1883 and lies some 9200 light years from Earth.
TS 80mm f6 APO triplet refractor
ZWO ASI 071MC Pro + TS 0,79 reducer.
Optolong L-eXtreme filter
Temp: -5c – gain 90
Exposure: 51x 300sec
Total integration: ~4,0 hours
Acquisition:
ASIAIR PRO
Post Processing:
Astro Pixel Processor:
Ha-OIII combine
Photoshop CS5 – Lightroom 5