Thursday, August 8, 2013

Messier objects M4, M6 (Butterfly Cluster) and M7

Finally got a chance to get some close-ups of M6 and M7, they're pretty good. M4 was kind of a let down, but it was super easy to find being so close to Antares. These are some of the most impressive clusters I've been able to photograph. I took these stacks from Metamora, IL where the skies were surprisingly dark, and I got them all in the same night!

If you haven't noticed, I've been using the same set of darks and bias files for the past few posts. It's been saving me a lot of time and storage space and I can't really tell the difference. I'm sort of checking these off the list, not expecting to get print-quality images with this camera. 

M7 open cluster
50 subs, 35 darks, 35 bias (1/4000s), each at ISO 1600, 300mm, f/5.6, 1.3 sec

M6 butterfly cluster
65 subs, 35 darks, 35 bias (1/4000s), each at ISO 1600, 300mm, f/5.6, 1.3 sec

M4 open cluster
104 subs, 35 darks, 35 bias (1/4000s), each at ISO 1600, 300mm, f/5.6, 1.3 sec

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