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Old 18-04-2016, 09:42 PM
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Sombrero

The Sombrero. 18 x 20 minutes with an RC8 and QHY8 on an EQ6 from the Adelaide suburbs.

I was hoping the longish total exposure for what is a relatively bright object would allow some processing to capture detail in the dust. Partially happy with getting some of that at least. Comments/tips appreciated.

Higher quality available on Astrobin.

Thanks,
Paul
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Old 18-04-2016, 09:46 PM
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Atmos (Colin)
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It looks like you have some quite nice data Paul, nicely resolved. To me it does look like you have gone a bit too heavy on the noise suppression however.
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Old 18-04-2016, 10:10 PM
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Hi Paul,
great data with much detail & it would look a lot better with some reprocessing.

cheers
Allan
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Old 19-04-2016, 07:48 AM
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Totally agree on the heavy noise supression there. Is there a lot of noise in the background that you needed to smooth over? Sometimes it is a bit better to show some noise than try to smooth it away.

Nice detail, would look good reprocessed.
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  #5  
Old 19-04-2016, 08:47 AM
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Ignoring the background smoothing issue, the galaxy itself is crispy crunchy! Well done.
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Old 19-04-2016, 09:47 AM
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Nice detail, Paul! Definitely worth a repro.

Cheers,
Rick.
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  #7  
Old 19-04-2016, 08:24 PM
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DiscoDuck (Paul)
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Thanks all. Hint taken!! I thought I'd learned to curtail my heavy hand when it comes to smoothing. Clearly not

An attempt at a repro attached. Larger version on Astrobin.

Paul
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Old 19-04-2016, 10:54 PM
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Much better. I thought it would be cleaner than that for 6 hours worth. Data, data, data. May need to make it a mega data project.
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Old 20-04-2016, 08:30 AM
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A very good galaxy photo Paul.

Nice detail and colours.

Ross.
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Old 20-04-2016, 12:59 PM
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Nice one Paul a little noisy but the galaxy has a real nice 3d effect about it.
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Old 20-04-2016, 01:56 PM
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make 2 layers in photoshop, darken the top layer till it looks more like a night sky and then erase the galaxy with about 50% (top layer) , the result is nowhere near as noisy and you lose that overall colour cast without losing the starlight. Makes for a more pleasing pic.
I wish I could capture this beauty in Melbourne's skies.
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Old 20-04-2016, 06:46 PM
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Hi Paul,
I wouldn't mind having a go if you post the original stack?

cheers
Allan
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Old 21-04-2016, 05:35 PM
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That's nice Paul. Detail right down to the core.
Geoff
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Old 21-04-2016, 08:37 PM
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Quote:
Originally Posted by Bart View Post
Much better. I thought it would be cleaner than that for 6 hours worth. Data, data, data. May need to make it a mega data project.
Indeed. Data is everything!

Quote:
Originally Posted by Ross G View Post
A very good galaxy photo Paul.

Nice detail and colours.

Ross.
Thanks Ross.

Quote:
Originally Posted by Flugel88 View Post
Nice one Paul a little noisy but the galaxy has a real nice 3d effect about it.
Thanks. I'll have a go at reducing the noise.

Quote:
Originally Posted by Nikolas View Post
make 2 layers in photoshop, darken the top layer till it looks more like a night sky and then erase the galaxy with about 50% (top layer) , the result is nowhere near as noisy and you lose that overall colour cast without losing the starlight. Makes for a more pleasing pic.
I wish I could capture this beauty in Melbourne's skies.
Thanks. That sounds like a great tip.

Quote:
Originally Posted by alpal View Post
Hi Paul,
I wouldn't mind having a go if you post the original stack?

cheers
Allan
Sure. I'll see if I can host it somewhere and let you have a link.

Quote:
Originally Posted by Geoff45 View Post
That's nice Paul. Detail right down to the core.
Geoff
Thanks Geoff.
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  #15  
Old 21-04-2016, 09:30 PM
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Hi
Couldn't resist playing with it, toned down the excess light pollution and came up with this.
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  #16  
Old 22-04-2016, 01:00 AM
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Hi Paul,
I had a quick go with the original stack - thanks.
This is what I came up with.
I don't know if I can get more out of it?


cheers
Allan
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  #17  
Old 22-04-2016, 08:01 AM
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DiscoDuck (Paul)
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Quote:
Originally Posted by Nikolas View Post
Hi
Couldn't resist playing with it, toned down the excess light pollution and came up with this.
Quote:
Originally Posted by alpal View Post
Hi Paul,
I had a quick go with the original stack - thanks.
This is what I came up with.
I don't know if I can get more out of it?
Thanks guys.
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  #18  
Old 22-04-2016, 08:03 AM
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OK - a few extra final tweeks.
A bit of noise reduction & sharpening in some areas.
A slight colour balance.
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  #19  
Old 22-04-2016, 05:56 PM
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Well done!
Tim
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  #20  
Old 22-04-2016, 07:58 PM
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DiscoDuck (Paul)
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Thanks.

BTW, my final attempt at finding a reasonable compromise with the noise is on Astrobin. Need more processing skillz as my kids might say!
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