Wednesday, May 04, 2011

First M13 for the Season

M13 was still pretty low when I shot this last night, but I couldn't resist the urge to capture it. It's a great globular with terrific detail when viewed through large scopes.

The little smudge at bottom left is NGC6207, a spiral galaxy about 45 million light years away. (Shan't be visiting there anytime soon!)

Image Details:

  • Imaging Scope: Astrotelescopes 80mm ED Refractor
  • Imaging Camera: Nikon D7000
  • Guiding Scope: William Optics 66mm Petzval Refractor
  • Guiding Camera: Meade DSI-C
  • Mount: Celestron CGEM
  • Exposures: 7 * 7 minute lights, 5 * 7 minute darks
  • ISO 640
  • Aligned and Stacked in Deep Sky Stacker
  • Post-Processing in GIMP (contrast, saturation and unsharp mask)
  • Noise Reduction in NeatImage


Ewan /bryce said...

Hi Phil! Hope all is going well? I just thought you'd like to know that your fantastic image of Messier 13 is featured (along with this blog post)over on Portal to the Universe—
The link to your blog post was also featured on twitter. So I dare say your will receive a fair few hits :)

Keep up the great work,


Phil said...

G'day Ewan! Long time no hear from (except FLICKR I suppose). Doing great, mate. New job, more time to do some astro stuff, having fun with the family. I hope all is well with you, too.

Very cool about the extra publicity! I think the image is so-so but glad you think otherwise! I'm pushing it a bit shooting such objects through an 80mm scope. With a DSLR it makes for a very wide field of view. The Nikon D7000's 16 megapixels makes it relatively easy to crop at 100% and still get decent results on more distant objects. I'd like to get some bigger glass soon, though.

Thanks again!


RoryG said...

Very nice, Phil! That is a really fun target. Good focus and detail on the stars, too.

Phil said...

Thanks, Rory! I love Globs. Hope to image a few more over the summer.

Polaris B said...

Very nice, Phil! This is an excellent, well-balanced image. Nicely framed, nice star-shapes, nice color. In fact, I was looking at M13 last night through a 15" dob, and it looked about like this! Well, you've maybe gone a bit deeper than my eyes did through the 15". Congrats on this. I hope mine turns out as well next time I turn a camera on M13 (again).


Phil said...

Thanks, Val! Actually you have reminded me to get my 12" Dob out soon as the glob come into view.

This is a decent image given it was taken with an 80mm scope. My DSLR has a great ability to still get a great 100% crop (16 megapixels).

I am starting to wonder how well I would do with a bigger scope...