M83 with a 4 inch scope.

[Mickoid (Michael)]

With several clear nights over the past week, I managed just over 3 hrs integration on M83 using an Esprit 100 and a Asi 224mc. A cooled camera would have helped reduce the noise but the light pollution gradients were more of an issue to contend with in a Bortle 6 sky. LRGB imaging is not easy under such conditions. It was fun trying!

PS. I've added a shot of Omega Centauri taken before M83 rose above the treeline.

[Emc2 (Jon)]

Nice result, I like it!

[Anth10 (Anthony M)]

Bagged a few goodies I see- would be nice to have cropped out the edges on M83 image but good catch with 100mm aperture in the backyard I’d say.

The small sensor does surprisingly well but all being equal probably best suited for planetary imaging which I’m sure you’re aware.
The pixel size has its advantage over the larger size of a DSLR but compromised on frame size and perhaps colour sensitivity with DSO objects.

Well done Mick on both presentations.

Anthony

[Mickoid (Michael)]

Thanks Jon and Anthony. I only noticed the edges in M83 after I posted it, you're right, I should crop them out. It was caused by the registering of the Luminace layer over the RGB data as I took the Luminance with the Asi 120mm and the sensor/pixel pitch is slightly different to the Asi 224mc. That meant after registering the two, the framing was different. I still have a bit to learn using the 224 for Deeo Sky. I think I can improve on what I'm getting with it now, by experimenting with different Gain settings.