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Old 18-11-2020, 01:03 PM
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ChrisV (Chris)
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Grus Quartet

Here's 5.5 hours on this galaxy cluster. Captured with an 8" newt and ASI071 over two nights. Probably need some more time on it, but I've packed away my newt for a while. Wow, there's a bunch of faint fuzzies buzzing around - just a bit hard to see with my noisy rendition

Modified on astrobin
www.astrobin.com/vchxwf/B/

Cheers Chris
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Last edited by ChrisV; 21-11-2020 at 02:01 PM.
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Old 18-11-2020, 03:16 PM
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I can definitely spot the background faint fuzzies Chris. the Grus quartet always makes for a fine display.

CS,
Rodney
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Old 19-11-2020, 09:13 AM
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That is really nice Chris. Outstanding details in the spiral arms.
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Old 19-11-2020, 12:13 PM
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That's a Vaughanderful Grus triplet Chris As Marc said some excellent fine details showing

Mike
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Old 19-11-2020, 04:21 PM
Placidus (Mike and Trish)
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All that in 5 hours and 8 inches. Well done!
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Old 19-11-2020, 04:33 PM
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Very nice image Chris, love the colours.
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Old 21-11-2020, 01:58 PM
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Thanks for all your comments. In the end I felt guilty putting up just 5.5hrs. So got out the newt and doubled that to 11hrs.

One thing I noticed is a dark ring around each galaxy. Might be a bit hard to seeas I've clipped it a bit. I'm sure its not some visual-psychological phenomenon, what would be the cause?
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Old 21-11-2020, 06:32 PM
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That effect certainly can result from use of the High Pass filter or Russell Croman's Gradient Exterminator..?

Mike
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