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Go Back   IceInSpace > Images > Deep Space

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  #1  
Old 01-09-2017, 03:47 PM
markas (Mark)
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NGC 6164-5 after 12+ hours

A while back I posted this object as a work in progress.

Since June, I've had little opportunity (fill in your own details on rotten weather) to add more data, but I did accumulate a total of 12hours 10 min total: 3.5 hours Ha; 7.7 hours OIII; 1 hour RGB.

The outer OIII shockwave gets very faint, but I think the extra time was worth it. Not sure about any more, though. Maybe a revisit next year....

Set-up: ASA10N at f/6.8, Moravian 16200 camera; subs were binned x2; 2.5min RGB and 10 - 20min NB all unguided.

New image processed in Pixinsight, finished in PS.

Mark
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Last edited by markas; 01-09-2017 at 04:03 PM. Reason: details
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  #2  
Old 01-09-2017, 04:06 PM
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RickS (Rick)
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Looks good, Mark. Nice rich colours and you have a lot of the faint stuff showing.

Still a fair way to go to catch up with the 74.2 hours I did on this object though
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  #3  
Old 01-09-2017, 09:40 PM
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A lovely image Markas. There is some ringing around stars near the centre that is detracting though (oversharpening?). If you can correct that it will make it a cracker of an image.

Greg.
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Old 01-09-2017, 09:45 PM
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Love those out shells Mark
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Old 01-09-2017, 10:56 PM
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Atmos (Colin)
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It is a lovely deep image but I do agree with Rick... Where is that extra 60 hours of data
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  #6  
Old 02-09-2017, 08:30 AM
Placidus (Mike and Trish)
Narrowing the band

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Lovely! The OIII shell is magnificent. One gets a strong sense of it expanding into faintly shown interstellar material, and leaving a darker cavity inside.
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  #7  
Old 02-09-2017, 02:38 PM
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strongmanmike (Michael)
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A great shot of this awesome object Mark, the outer OIII bubble edges are nicely delineated

Mike
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  #8  
Old 02-09-2017, 08:23 PM
IanP
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Great shot Markas !!!
Any chance of posting it in a little bit better resolution
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  #9  
Old 03-09-2017, 10:34 AM
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That's a cracker Mark
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  #10  
Old 03-09-2017, 04:34 PM
markas (Mark)
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Thanks you all for the kind comments.

Ian, I don't have the means at the moment to post a higher res image.

Greg, the artifacts aren't ringing - I think they are due to my not having quite mastered RGB star replacement in NB images.

Rick, hopefully you can tell me whether a revisit next year will be worth it

Mark
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  #11  
Old 04-09-2017, 07:02 AM
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Quote:
Originally Posted by markas View Post
Rick, hopefully you can tell me whether a revisit next year will be worth it
There's certainly more dim Oiii to be had if you want to invest the time, Mark!
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  #12  
Old 04-09-2017, 09:12 AM
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Great effort you must be very happy with your result.
I noticed unguided... your mount seems to work very well.
Alex
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  #13  
Old 04-09-2017, 06:16 PM
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rustigsmed (Russell)
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very nice work mark i love this target!
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  #14  
Old 05-09-2017, 08:46 AM
markas (Mark)
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Russell and Alex,

Thanks for the encouragement.

Alex, the longest I have attempted was a test with 12 consecutive undithered 5 min subs. According to Pixinsight analysis, the 12 subs aligned to within 0.75 arcsec.

Mark
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  #15  
Old 14-09-2017, 08:43 AM
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multiweb (Marc)
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That's a top shot Mark. Great colors and details.
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  #16  
Old 14-09-2017, 09:52 AM
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Nice work Mark. It is a great object to image.
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  #17  
Old 17-09-2017, 08:29 AM
markas (Mark)
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Marc and Paul,

Thanks for your comments.

Mark
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