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Old 25-02-2018, 09:47 PM
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alocky (Andrew lockwood)
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two out of three aint bad!

I had to give up on my attempt to fit all three of the leo trio into a 2 frame mosaic as the light-pollution gradients just killed it. However, each of the two frames wasn't so bad with a bit of cropping, so here's M65 and M66. It's certainly possible to see the bar in M65, and the internal structure of M66 shows that these guys have had a pretty hard time in the last 800 million years.
higher res here:
https://www.astrobin.com/335184
Scope was a 16"f3.6 with Wynne corrector, camera is a QSI683wsg with astrodon filters. This about 3 hours of L in 5 minute subs, with 1.5 each of R,G and B.
Constructive criticisim welcome, as is speculation on whether or not I ran decon on the luminance channel.
cheers,
Andrew.
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Old 25-02-2018, 10:55 PM
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Peter Ward
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Nice one
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Old 26-02-2018, 12:01 AM
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Yep nice work Andrew
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Old 26-02-2018, 07:59 AM
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Trish: Gorgeous!
Mike: Subtle and beautifully processed.
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Old 26-02-2018, 08:15 AM
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Nice detail, Andrew!
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Old 26-02-2018, 08:58 AM
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Very nice noise free detailed image Andrew
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Old 26-02-2018, 09:13 AM
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And a fine pair they make as well. It’s nice to be able to peer into the structure of the two galaxies.
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Old 26-02-2018, 09:18 AM
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Nice one Andrew, a little more detail there than my 4”

Hope you mosaic the hot dog in...
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Old 26-02-2018, 09:36 AM
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Shame about the damn gradients but a great pairing Andrew. I like images that just show these two more than those that show all three. Some good detail showing too

Mike
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Old 26-02-2018, 07:01 PM
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These things are at a fairly low elevation, so getting anything that shows good detail should be considered pretty good. Not bad for light polluted skies.
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Old 26-02-2018, 09:19 PM
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Quote:
Originally Posted by Paul Haese View Post
These things are at a fairly low elevation, so getting anything that shows good detail should be considered pretty good. Not bad for light polluted skies.
Thanks Paul - I'm 10km south of the Perth CBD which puts these things right in the light soup!

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Originally Posted by strongmanmike View Post
Shame about the damn gradients but a great pairing Andrew. I like images that just show these two more than those that show all three. Some good detail showing too

Mike
Thanks Mike - part of the problem is with any stray light getting into the corrector, the shadow of the off-axis pickup in the QSI camera changes very slightly against the flats. I don't even need the damn thing anymore! Unfortunately, this always wipes out the middle third at the bottom of the frame.
Quote:
Originally Posted by Camelopardalis View Post
Nice one Andrew, a little more detail there than my 4”

Hope you mosaic the hot dog in...
Not that much more, though! Best I can do is link in the other frame
https://www.astrobin.com/335227

Quote:
Originally Posted by Ryderscope View Post
And a fine pair they make as well. It’s nice to be able to peer into the structure of the two galaxies.
Apparently, the concentration of quasars (which are among the little smudges above M66) is what got Harlton Arp thinking that maybe they weren't cosmological redshifts!

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Originally Posted by Atmos View Post
Very nice noise free detailed image Andrew
Thanks Colin!
Quote:
Originally Posted by RickS View Post
Nice detail, Andrew!
Cheers Rick! BUt I wish for dark, mountain skies though. I'd love to see what this scope could really deliver.

Quote:
Originally Posted by Placidus View Post
Trish: Gorgeous!
Mike: Subtle and beautifully processed.
Thank you both, very high praise from an extremely credible source!

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Originally Posted by atalas View Post
Yep nice work Andrew
Thanks Louie!
Quote:
Originally Posted by Peter Ward View Post
Nice one
Cheers Peter! They go well with a Hot Dog.
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