Actually I am right in the process of capturing another object in SHO... But because of a friend, I noticed that this iconic DSO is high in the skies... and yesterday was the last day with low moon phase. So i decided to spontaneously switch to my OSC (also because of the bigger sensor) and go for it within one night.
It was the first time (after my change to a mono-camera) that I swapped image trains. And it worked out without a hitch. But I gotta say... I was pretty confused when the first frame was done and I didn't see anything of the object
"The Dark Shark" is number 1235 in Lynds Dark Nebula catalogue. It's an interstellar cloud with such an high density, that it obscures the visible wavelengths of light from objects behind it. The extinction of the light is caused by interstellar dust grains located in the coldest, densest parts of molecular clouds. Like other interstellar dust or material, things it obscures are only visible using radio astronomy or infrared astronomy.
The form of such dark clouds is very irregular: they have no clearly defined outer boundaries and sometimes take on convoluted serpentine shapes. And sometimes... you know... look like a gigantic shark!
Within LDN 1235 there are two blue reflection nebulae, vdB149 and vdB150, that are illuminated by nearby spectral type B8IV stars. The low surface brightness galaxy on the right is called PGC 67671 and is located approximately 58 million light-years away in Cepheus.
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