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Old 19-06-2016, 07:28 PM
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Corona Australis, A classic Southern object repro

A classic winter object. One of the more beautiful reflection nebulas/dust areas in the Southern sky.

I will add exposure time to this for sure but it came out pretty well already with minimal exposure time. Noise was remarkably low. I now run my Proline on the lower noise setting which has slower downloads (not really that long) but cleaner read noise from 12 down to 8 electrons. Its noticeable when processing.

http://www.pbase.com/gregbradley/image/163454121/large regular size

http://www.pbase.com/gregbradley/ima...54121/original large size its worth looking around in this large version as there are some interesting background galaxies and various red Herbig Haro objects.

Greg
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Last edited by gregbradley; 21-06-2016 at 07:09 PM.
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  #2  
Old 19-06-2016, 07:33 PM
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Atmos (Colin)
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Its a nice area Greg and well framed. Must be really dusty in parts of that lower right region, its just... Black!

What is the download time difference between the fast and slow setting on your Proline?
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  #3  
Old 19-06-2016, 07:40 PM
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Quote:
Originally Posted by Atmos View Post
Its a nice area Greg and well framed. Must be really dusty in parts of that lower right region, its just... Black!

What is the download time difference between the fast and slow setting on your Proline?
Long enough exposure will make that dust more brown with crimson areas.

Fast download of a 1x1 binned image is around 1 second and at the slower speed about 16 seconds. Its listed on the FLI site.

Greg.
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Old 19-06-2016, 07:53 PM
Placidus (Mike and Trish)
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Well done! The globular came out beautifully too. It would make a great image just on its own.
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  #5  
Old 19-06-2016, 07:58 PM
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RickS (Rick)
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Usually the glob looks compressed but you've done a great job with it, Greg. Also fantastic work on all the bright components. Some more data to bring out the dusty stuff and it will be a killer image

Cheers,
Rick.
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  #6  
Old 19-06-2016, 09:00 PM
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Quote:
Originally Posted by Placidus View Post
Well done! The globular came out beautifully too. It would make a great image just on its own.

Thanks Mike. The Glob can be tricky as its easy to overexpose it.

I know from experience that the glob can be damaged in processing really easily.

Quote:
Originally Posted by RickS View Post
Usually the glob looks compressed but you've done a great job with it, Greg. Also fantastic work on all the bright components. Some more data to bring out the dusty stuff and it will be a killer image

Cheers,
Rick.
Thanks Rick. Yes I was happy with how the glob turned out. More exposure time is definitely on my wishlist.

Greg.
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  #7  
Old 19-06-2016, 09:49 PM
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A beautiful object Greg and you have photographed it so well.

Very sharp with deep, smooth detail.

Nice colours and well composed.

Good luck with the final image, although it is an excellent photo as is.

Ross.
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  #8  
Old 20-06-2016, 05:31 AM
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Quote:
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A beautiful object Greg and you have photographed it so well.

Very sharp with deep, smooth detail.

Nice colours and well composed.

Good luck with the final image, although it is an excellent photo as is.

Ross.
Thanks very much Ross. Yes I like it as it is as well. Not every image turns out to be worth extra effort but I think this one does.
I was also thinking of a mosaic as a possibility too.

Greg.
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Old 20-06-2016, 09:35 AM
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That's really nice Greg.
Absolute pleasure to view
Scott
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  #10  
Old 20-06-2016, 01:44 PM
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Considering this was imaged from the outer burbs, not bad Greg, not bad...I guess you just need ..?...more exposure Ok.. Who said that?

But a clean looking image for sure, with lovely colour, the glob looks lovely and I like the framing too

Mike
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Old 20-06-2016, 03:52 PM
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Originally Posted by DJScotty View Post
That's really nice Greg.
Absolute pleasure to view
Scott
Cheers Scott.

Quote:
Originally Posted by strongmanmike View Post
Considering this was imaged from the outer burbs, not bad Greg, not bad...I guess you just need ..?...more exposure Ok.. Who said that?

But a clean looking image for sure, with lovely colour, the glob looks lovely and I like the framing too

Mike
Thanks Mike. I will probably do double the exposure and maybe consider a mosaic although this would not be the ideal first frame.

Greg.
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  #12  
Old 20-06-2016, 04:00 PM
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Looks pretty good to me Greg although it is a bit dark.

Cheers

Steve
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  #13  
Old 20-06-2016, 04:03 PM
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Looks pretty good to me Greg although it is a bit dark.

Cheers

Steve
Thanks Steve. Nothing another 4 hours can't fix! As always more is better in astrophotography.

Greg.
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  #14  
Old 20-06-2016, 04:11 PM
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marc4darkskies (Marcus)
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Nice one Greg - great detail but it's too dark IMO. You appear to have enough data to reveal the brown dust quite well - I tried it and it looks great!

Cheers, Marcus
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  #15  
Old 20-06-2016, 08:22 PM
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Brightened up.

Quote:
Originally Posted by marc4darkskies View Post
Nice one Greg - great detail but it's too dark IMO. You appear to have enough data to reveal the brown dust quite well - I tried it and it looks great!

Cheers, Marcus
Thanks Marcus. I looked at it again and yes you are right it was able to be made more luminous. The data was cleaner than I'm used to!

Greg.

Last edited by gregbradley; 20-06-2016 at 09:07 PM.
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  #16  
Old 26-07-2016, 09:36 PM
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Shiraz (Ray)
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been a bit out of action and missed this one - really nice hi res image Greg, especially evident in the globular. It's a beautiful image.
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  #17  
Old 26-07-2016, 09:45 PM
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Quote:
Originally Posted by Shiraz View Post
been a bit out of action and missed this one - really nice hi res image Greg, especially evident in the globular. It's a beautiful image.
Thanks Ray. Not as nice as yours but I am happy with it for now. I plan to add to it over the weekend.

Greg.
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  #18  
Old 26-07-2016, 11:16 PM
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Looks great Greg, it will be interesting to see it with added data.
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  #19  
Old 27-07-2016, 10:12 AM
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Looks great Greg, it will be interesting to see it with added data.

Thanks George. Its a great area and very photogenic so I will definitely be putting more effort into this one. Probably 3X as much exposure should lift it nicely. Its pretty clean already considering the short exposure time.

Greg.
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  #20  
Old 28-07-2016, 06:05 PM
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Regulus (Trevor)
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Classic composition, and great detail and colour; whats not to like?
Beautiful Greg.

Trev
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