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Old 04-10-2020, 06:30 PM
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NGC 7293 - Helix

Ended up with just over 13 hours of data on this shot - 262 x 180 second exposures.
Image has been cropped and was taken using a Celestron RASA 11" coupled with an ASI 071MC Pro camera.



full res HERE
or https://www.astrobin.com/qy757h
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Last edited by Grahame; 04-10-2020 at 11:29 PM.
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Old 04-10-2020, 07:19 PM
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h0ughy (David)
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Green eyes looking at this one. Nice
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Old 04-10-2020, 09:09 PM
Placidus (Mike and Trish)
Narrowing the band

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Well done. Good solid data.



(The high res link isn't working yet)
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Old 04-10-2020, 11:30 PM
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Cheers, i was logged out of the site before i got to post this - must have dropped the embedded link, fixed!



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Originally Posted by Placidus View Post
Well done. Good solid data.



(The high res link isn't working yet)
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Old 05-10-2020, 08:59 AM
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Woohoo it's clear

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Looks good Graeme, has a nice glow to it ...is there a little vignetting there?

Mike
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Old 05-10-2020, 10:41 AM
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That's excellent Grahame. There's a glow around it. I haven't seen that in other shots. What is it?
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Old 05-10-2020, 10:58 AM
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mswhin63 (Malcolm)
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Nice shooting Grahame, I hope to make it one of my next targets if possible.
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Old 05-10-2020, 10:06 PM
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Cheers Mike! I suspect there were high clouds at some point through the imaging session - while i filter within pixinsight using FWHM and Eccentricity values I haven't figured out how to quickly check and remove images affected by cloud (less opening every image and looking manually!!)



Grahame



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Looks good Graeme, has a nice glow to it ...is there a little vignetting there?

Mike
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Old 06-10-2020, 09:53 PM
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Quite a respectable Helix there Graham.

"...I haven't figured out how to quickly check and remove images affected by cloud (less opening every image and looking manually!!) ...
Have you tried the Blink process in PI? It is handy for quickly checking a large number of subs.

Clear skies,
Rodney
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