The Leo Triplet

The Leo triplet is a group of galaxies about 35 million light years away. NGC 3628 is at the top, M66 bottom left and M65 bottom center.
This image, taken on 27th April 2011, is a stack of around 20 30sec exposures using a Canon EOS550d and my Skywatcher 200P, dark and flat frames were also taken. I had to over-process the image quite a bit to bring out some of the detail in the galaxies and this has highlighted uneven illumination in the background which I can't remove, 30 second exposures aren't really long enough for this subject but my mount won't track precisely enough for any longer.


Anonymous said...

Nice one Tim. Take lots of 30sec frames, 50 or more, if the clouds allow.
Can you send me a copy of the stacked image before you did the GIMP on it please, and I'll try with Photoshop for you.
You need a cooling system for your DSLR, to reduce the need for darks.
More later.

Tim Beale said...

Thanks Brian. I've sent you an e-mail.....