View Full Version here: : Gum 1 and the Seagull
pmrid
01-12-2013, 03:17 AM
For a bit of fun, I did a couple of hours on this faint emission nebula with my BabyQ/ATIK LE4000 on one pier and my 10" astrograph F3.8 with a SXVR_H16 on another - the BabyQ was using a Baader 8.5nm Ha filter and the 10" using an Astrodon 5nm. Both are roughly similar exposures (after a plane flew through a couple of each) of 8 or 10 x 10 minutes.
This nebula is pretty faint and even with nearly 2 hours, the results are still noisy. But the different image scales do produce different perspectives. The BabyQ works out at about 3.4 as/p whereas the 10"comes in at about 1.6 as/p.
I can't help feeling that Gum 1 looks more like a big old friendly dog smiling broadly.
Peter
multiweb
01-12-2013, 08:10 AM
Beautiful shots. Particularly like the first one. Great field resolution. :thumbsup:
RickS
01-12-2013, 02:58 PM
Nice result, Peter. Are you working up to some longer exposures? I think it would be worthwhile for those NB targets.
Spookyer
01-12-2013, 03:59 PM
Peter interesting, the second shot appears to have more noise than the first. Is that just the difference in the camera sensor?
Brett
astroron
01-12-2013, 04:06 PM
No technical jargon here Peter, just very good. :)
I like your dog analogy. :D
Cheers:thumbsup:
Well done Peter. The soaring seagull is one cool target. Enjoyed the wide field view. I'll take more of that. Cheers
pmrid
01-12-2013, 07:34 PM
Same sensor Brett. But different filters. Is it that simple?
Peter
coldknights
01-12-2013, 07:46 PM
Well Done Peter !:thumbsup:
ozstronomer
01-12-2013, 09:11 PM
Both great images Peter as you said a little noisy but a few more hours exposure will sort that out.
I really enjoyed these Peter. Would back up those comments that another few hours is well warranted. Perhaps even a mosaic with the Baby Q if you're really going to get carried away?
marco
02-12-2013, 01:56 PM
Both Nice Peter, perhaps a little longer exposure can reduce a bit of noise, never the less the vistas are very pretty!
Clear skies
Marco
pmrid
02-12-2013, 04:28 PM
Thanks everyone. It's very encouraging to read your supportive comments. Longer exposures are definitely on the cards on this one. BUT after I finish my projects on M1 and The Cone, Xmas Tree and Fox Fur nebs. Ahh - so many objects. So few clear nights.
Peter
gregbradley
02-12-2013, 07:56 PM
Great images Peter.
Greg.
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