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Old 19-09-2020, 01:59 PM
tornado33
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tornado33 is offline
 
Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 3,998
NGC 6872 the Condor Galaxy and others.

Taken under Bortle 6 to 7 skies, almost amazed its possible to pull any detail from galaxy clusters under such bright skies, and filters of no use with galaxy imaging.

I saw this interesting galaxy cluster on DSS images so thought Id have a crack at it. Loving the EOS Ra, with ISO at max test shots of just a few secs reach well into the sky background, making composing images easier, the galaxies were visible, and the live view makes focusing spot on.

The battle really begins once I have the data, dealing with strong light pollution that turns into a strong gradient as I process the calibrated, stacked image. It plays havoc with the colour balance trying to get the sky looking neutral. Anyway here it is, I cropped just the interesting part, there are smaller fainter galaxies scattered throughout the full frame. A full frame camera seems so big compared to the old 350D.
Full res version of the cropped image below. Hand guided as usual.

https://www.astrobin.com/6g0tlz/

More info about this strange looking spiral galaxy here
https://en.wikipedia.org/wiki/NGC_6872
Attached Thumbnails
Click for full-size image (ngc6876x12x10miniso800ra10infincs.jpg)
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