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Old 13-05-2018, 07:49 AM
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Nebula NGC6164

I took this last weekend in reasonable seeing.

Ha O111 LRGB image. 9 hours and 20 minutes.

http://www.pbase.com/gregbradley/image/167468206/large

Greg
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Last edited by gregbradley; 14-05-2018 at 08:39 AM.
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  #2  
Old 13-05-2018, 08:46 AM
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Nice one, Greg! Good detail in the core and showing a lot of the outer shell.
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Old 13-05-2018, 09:10 AM
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Yes!
I agree with Rick.
Well done!
Cheers,
Tim
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  #4  
Old 13-05-2018, 09:30 AM
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What Rick said
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  #5  
Old 13-05-2018, 10:48 AM
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Looks awesome. You have beautifully captured the swirly clouds of ionised gas around the central star.
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  #6  
Old 13-05-2018, 10:56 AM
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Great shot! You've got the outer OIII shockwave, which is not so easy....

Mark
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Old 13-05-2018, 11:07 AM
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Nice shot Greg. This is not a planetary nebula though. It's actually emission from an O type star.

Steve
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Old 13-05-2018, 11:12 AM
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Wow the detail in the core and outer shells is fantastic Greg
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Old 13-05-2018, 11:16 AM
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Nicely done. Great image scale and details.
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  #10  
Old 13-05-2018, 11:38 AM
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Quote:
Originally Posted by RickS View Post
Nice one, Greg! Good detail in the core and showing a lot of the outer shell.
Thanks Rick.

Quote:
Originally Posted by topheart View Post
Yes!
I agree with Rick.
Well done!
Cheers,
Tim
Thanks Tim. I had already decided to image this one before you posted yours just so you know I am not stalking you (no need for an AVO hehe).

Its quite different from yours as its more of a narrowband image. You must have gotten a lot of RGB data and I like that colour in the nebula as well from RGB.

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What Rick said
Cheers Geoff.
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  #11  
Old 13-05-2018, 11:41 AM
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Quote:
Originally Posted by Slawomir View Post
Looks awesome. You have beautifully captured the swirly clouds of ionised gas around the central star.
Quote:
Originally Posted by markas View Post
Great shot! You've got the outer OIII shockwave, which is not so easy....

Thanks for that. Yes it did come out well for the amount of exposure time. The advantage of 17 inch aperture.

Mark
Quote:
Originally Posted by Stevec35 View Post
Nice shot Greg. This is not a planetary nebula though. It's actually emission from an O type star.

Steve
Ah thanks Steve. I should've looked that up before I posted it. I'll correct it.

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Originally Posted by atalas View Post
Wow the detail in the core and outer shells is fantastic Greg
Thanks Louie. I am very happy with this Microline 16 with its 6 micron pixels. I thought it would simply lose sensitivity but even at .43 arc secs image scale the scope and conditions are keeping up with it.

Quote:
Originally Posted by Peter Ward View Post
Nicely done. Great image scale and details.
Thanks Peter. I did spend a lot of time processing this and its quite a complex image. You tend to lose perspective when you spend a long time in one sitting. I left it for a while and came back and the original was way too saturated so I corrected that.

Greg.
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Old 13-05-2018, 01:11 PM
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Quote:
Originally Posted by gregbradley View Post
Thanks Rick.



Thanks Tim. I had already decided to image this one before you posted yours just so you know I am not stalking you (no need for an AVO hehe).

Its quite different from yours as its more of a narrowband image. You must have gotten a lot of RGB data and I like that colour in the nebula as well from RGB.


Hi Greg,
Yes, it is interesting how the predominant NB data changes the balance of things. I like your rendition.
Cheers,
Tim
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  #13  
Old 13-05-2018, 04:11 PM
Placidus (Mike and Trish)
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Hi, Greg,

You've achieved great depth in the outer OIII shell, showing not just the brighter bits but lots of detail. In the central region, there is an intriguing inverted cone or funnel structure that I always look for. In your image it is immediately above the central star. You've got quite a bit of fine microstructure in the cone. Superb!

Best,
Mike
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  #14  
Old 13-05-2018, 09:45 PM
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Quote:
Originally Posted by topheart View Post
Hi Greg,
Yes, it is interesting how the predominant NB data changes the balance of things. I like your rendition.
Cheers,
Tim
Yes the NB data definitely makes a different look. Thanks.

Quote:
Originally Posted by Placidus View Post
Hi, Greg,

You've achieved great depth in the outer OIII shell, showing not just the brighter bits but lots of detail. In the central region, there is an intriguing inverted cone or funnel structure that I always look for. In your image it is immediately above the central star. You've got quite a bit of fine microstructure in the cone. Superb!

Best,
Mike

Thanks Mike. I have been surprised at the level of extra resolution the CDK has given with the Microline 16 camera. .43 arc sec is a pretty tight image scale. I know you are imaging at even less at .39. Good seeing becomes very important with those figures.

Greg.
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  #15  
Old 14-05-2018, 10:59 AM
willik (Willik)
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That is different looks good Greg great detail
Martin
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  #16  
Old 14-05-2018, 01:59 PM
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Looks great Greg, a fascinating target too, well done!
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  #17  
Old 14-05-2018, 07:47 PM
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Quote:
Originally Posted by willik View Post
That is different looks good Greg great detail
Martin
Thanks Martin.

Quote:
Originally Posted by Andy01 View Post
Looks great Greg, a fascinating target too, well done!
Cheers Andy.

Greg.
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  #18  
Old 15-05-2018, 08:35 AM
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multiweb (Marc)
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Nicely done Greg. Heaps of fine details.
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  #19  
Old 15-05-2018, 09:15 AM
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Nicely done Greg. Heaps of fine details.
Thanks Marc. I have been very happy with the resolution the Microline 16 has been getting on my CDK17.

Greg.
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  #20  
Old 15-05-2018, 09:39 AM
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Quote:
Originally Posted by Placidus View Post
In the central region, there is an intriguing inverted cone or funnel structure that I always look for.
I've been informally calling it "the Megaphone" for a while
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