This is IC 1795, an emission nebula located approximately
6000 light-years away in the constellation of Cassiopeia. It covers a field of
about 20 minutes of arc, or approximately 70 light years across.
At approximately 6000 light-years away from us, this complex
extends across the Perseus arm of our Galaxy, the Milky Way. IC 1795 is a part
of the large nebula complex of star forming regions that lie at the edge of a
large molecular cloud.
Not far from the famous Double Cluster in Perseus, IC 1795
is easy to see and is in a very rich environment with IC 1805 (the Heart
Nebula), IC 1848, and many open clusters.
This image was created by adopting the Hubble false-colour
palette for mapping narrowband emissions from sulphur, hydrogen and oxygen
atoms to the red, green and blue channels respectively.
Imaged over two night, this image comprises of over 7hrs of
exposures, not including the calibration frames. Conditions were mixed, with
many exposures being affected by cloud and mist. Stacked in PixIsight with each
exposure being weighted according to its overall quality. Processed in
PixInsight and Photoshop.
Ha: 40x180sec
Sii: 20x120sec plus 35x180sec
Oiii: 20x120sec plus 40x180sec
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