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NGC 6621/22 - Arp 81

Started by frankg, 06/10/2008 04:25AM
Posted 06/10/2008 04:25AM Opening Post
Charles Hakes recently started a thread asking for comparisons of images of M51 with amateur equipment with a scaled down Hubble image. This comparison motivated me to look again at a few raw images of small faint galaxies I took a while ago. I took a few shots of Arp 81 with my C14 and an ST10 camera just to see how these faint fuzzies would look like (binned 3x3, 5x1min exposure). Well, after a lot of processing and noise reduction and catalogue review (PS, NeatImage, USNO B1.0) here is the result. Not Hubble of course.....and no color

Comments welcome

Frank



Attached Image:

frankg's attachment for post 42432
Posted 06/10/2008 04:32AM #1
That's great work Frank!
Not an easy target for sure... well done! 8)

Thank you for sharing!

Ivan Gastaldo 8)
Coconut Creek, FL

Ivan's Observatory
Lat 26N 16' 48" Long 80W 10' 48"
[COLOR="Red"]Personal Website:[/COLOR] http://www.ivangastaldo.com

CCD Imaging and Processing/Deep Sky - Moderator
I like to complain about everything - Moderator
Posted 06/10/2008 01:58PM #2
That's pretty good. And only 5 minutes?! That suggests to me something to try for a longer time, and maybe binned 2x2? I'll bet lots of stuff that shows up in the Hubble version can start to sneak out with your scope/camera. Thanks for posting.

Charlie


Fort Lewis Observatory: (37.238, -108.052) ~2360m (7744 ft.) elevation.
Darkness - typically 6.5+
Scope - Meade 16" LX200; f6.3 focal reducer
Focus - JMI Smart focus
Camera - SBIG ST-10XE; (~.5"/pixel)
Guiding - AO-8 and/or Meade 5"/DSI/PHD
http://www.fortlewis.edu/observatory
Posted 06/11/2008 08:18AM #3
hi Frank,

your image deserved much more recognition in this forum!
it is a great pick! such a rarely images couple!
you did a great job on that one!
smile

clear skies, guys!
Dietmar
---
www.stargazer-observatory.com
Posted 06/11/2008 03:18PM #4
Thanks for having a look and taking the time to comment. I think I might go with Charles recommendation and give it another shot with less binning. Maybe add color...

Regards

Frank