NGC 2841 in Ursa Major.

[davegrennan]

I haven't published any pictures for quite some time. This is primarily down to spending most of my time alternating between asteroid and supernova surveys. However while rooting through some data I remembered this which I had captured but not finished.

NGC2841 is a lovely tighly wound spiral in Ursa Major. It has an integrated magnitude of +9.2. It's 42 million light years

Here's the pic (be sure to click on the image for the full size)
www.webtreatz.com/gallery/displayimage.php?pos=-88

The image itself contains 3hours of luminance combined with 90mins each of RGB. The colour was then G2V calibrated.

Equipment was C14 @ f/5.0 (Optec Nextgen focal reducer), AP1200, SBIG ST8 and CFW9 filter wheel with Astronomik LRGB filters.

Hope you like it.

[brianb]

Exquisite detail, the "knots" in the spiral arms are beautifully defined. Thanks for posting!

[martinastro]

Dave, that's astounding!, the mottled knotted structure within those well defined spiral arms are amazing! Thanks indeed for sharing. Good luck on your hunt 

[markt]

Very impressive indeed!