The famous galaxy in Ursa Major, without it’s neighbour M81.
Image on two nights with the OSC ASI2600MC and the C14 on F7.2 (Starizona Reducer LF). 1000 frames of 30 seconds
M82
IC342 re-processed by Jean Lammertyn
Jean re-processed the set of subs and retained 341 or 75% of the 2-minute subs.
The result is very impressive and offers a view on all nebulosity that surrounds the galaxy but also hides it from being very bright. This galaxy is very large and would fit within a half Moon. So the surface brightness is rather low, which makes it easy for the IFn and Milky Way nebulosity to dim it even further.
The image displays a wealth of information, not only IFN patches everywhere, but also galaxies and H-Alpha nebulosity to the right of the galaxy.
The bright nebulosity was not the intention of the processing. Apparently the brightness of the image shifted when the original TIF was saved as a JPG under Windows Photo software.
When starting from a PNG, the saved JPG did not brighten. This was the original intended result:
