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A Couple of Galaxies

  • DaveGrennan
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  • IFAS Astronomer of the Year 2010
  • IFAS Astronomer of the Year 2010
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18 years 1 week ago #37389 by DaveGrennan
A Couple of Galaxies was created by DaveGrennan
Looks like I wasnt the only one making use of the clear night on Friday.

Heres a couple of very quickly processed images

Firstly NGC2903 - A lovely barred spiral in Leo.

webtreatz.com/component/option,com_zoom/...geNo,6/key,47/hit,1/

Secondly the magnificent M51;

webtreatz.com/component/option,com_zoom/...geNo,6/key,48/hit,1/

Details as usual under the image.

Regards and Clear Skies,

Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here

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18 years 1 week ago #37392 by dmcdona
Replied by dmcdona on topic Re: A Couple of Galaxies
Excellent Dave. I think perhaps your best images so far? Certainly, M51 is the best we've seen here.

Dave

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18 years 1 week ago #37394 by michaeloconnell
Replied by michaeloconnell on topic Re: A Couple of Galaxies
Really great images Dave - as usual! We're becoming accustomed to this high standard now! :) I've a bit of catching up to do.

2 comments:
* The levels might have been slightly clipped. If you open the images in Photoshop, you'll see that the left side of the histogram has been clipped to the peak. Might create a slightly more natural blend if you didn't clip it as much.

* There's loads of detail in the images. My personal taste would be to do an unsharp mask of the spiral arms to improve their contrast and then run the image in Neat Image to reduce the noise. This would bring up the detail & contrast of the arms but surpass the resulting noise. I gave it a go on the M51 image and it worked reasonably well for a jpg.

Don't get me wrong - super images the way they are. Must my 2 cent.

Out of curiosity, how would you rate the Atik Vs the modified 300d? Much of a difference?

Have fun,

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18 years 1 week ago #37430 by dave_lillis
Replied by dave_lillis on topic Re: A Couple of Galaxies
Great images Dave, keep up the good work

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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18 years 1 week ago #37444 by Keith g
Replied by Keith g on topic Re:
Great detail in both of those shots Dave, NGC 2903 is a great shot, and M51 is superb !

Keith..

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18 years 1 week ago #37471 by TrevorDurity
Replied by TrevorDurity on topic Re: A Couple of Galaxies
Both stunning images :shock:
Clear skies seem to have missed Galway apart from an hour on Friday so it's good to be able to see results from other parts.

Trev

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