View Full Version here: : Sombrero
DiscoDuck
18-04-2016, 09:42 PM
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 (http://www.astrobin.com/245528/).
Thanks,
Paul
Atmos
18-04-2016, 09:46 PM
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.
alpal
18-04-2016, 10:10 PM
Hi Paul,
great data with much detail & it would look a lot better with some reprocessing.
cheers
Allan
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.
Placidus
19-04-2016, 08:47 AM
Ignoring the background smoothing issue, the galaxy itself is crispy crunchy! Well done.
RickS
19-04-2016, 09:47 AM
Nice detail, Paul! Definitely worth a repro.
Cheers,
Rick.
DiscoDuck
19-04-2016, 08:24 PM
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 (http://www.astrobin.com/245528/B/).
Paul
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.
Ross G
20-04-2016, 08:30 AM
A very good galaxy photo Paul.
Nice detail and colours.
Ross.
Flugel88
20-04-2016, 12:59 PM
Nice one Paul a little noisy but the galaxy has a real nice 3d effect about it.
Nikolas
20-04-2016, 01:56 PM
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.
alpal
20-04-2016, 06:46 PM
Hi Paul,
I wouldn't mind having a go if you post the original stack?
cheers
Allan
Geoff45
21-04-2016, 05:35 PM
That's nice Paul. Detail right down to the core.
Geoff
DiscoDuck
21-04-2016, 08:37 PM
Indeed. Data is everything! :)
Thanks Ross.
Thanks. I'll have a go at reducing the noise.
Thanks. That sounds like a great tip.
Sure. I'll see if I can host it somewhere and let you have a link.
Thanks Geoff.
Nikolas
21-04-2016, 09:30 PM
Hi
Couldn't resist playing with it, toned down the excess light pollution and came up with this.
alpal
22-04-2016, 01:00 AM
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
DiscoDuck
22-04-2016, 08:01 AM
Thanks guys.
alpal
22-04-2016, 08:03 AM
OK - a few extra final tweeks.
A bit of noise reduction & sharpening in some areas.
A slight colour balance.
topheart
22-04-2016, 05:56 PM
Well done!
Tim
DiscoDuck
22-04-2016, 07:58 PM
Thanks.
BTW, my final attempt at finding a reasonable compromise with the noise is on Astrobin (http://www.astrobin.com/245528/C). Need more processing skillz as my kids might say!
Atmos
23-04-2016, 08:31 AM
Looks a lot better than your original process Paul. Safe to say that's what happens with most of us :P
whale
23-04-2016, 12:09 PM
fantastic detail on the "top" surface of the galaxy and in the dust line
welll done
Paul
DiscoDuck
23-04-2016, 03:53 PM
LOL. Thanks.
Thank you.
vBulletin® v3.8.7, Copyright ©2000-2025, vBulletin Solutions, Inc.