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  #1  
Old 12-12-2010, 08:52 AM
Martin Pugh
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Ngc 1499 - Modified.

Hello all

This is a HaL(Syn)RGB image of the California Nebula. RGB was 9 hours and Ha was 6 hours. FSQ106/16803 camera.

Controlling the reflections off Mag 4 Menkib was just as problematic as Altinak is.

What I did not expect to pick up is all the dust in the lower right of the image extending off the main nebula. I had not seen this before in images of this object. Sure enough though, even my planetarium software shows patches of dust there, almost devoid of stars.

http://tinyurl.com/32j82pg

thanks for looking
Cheers
Martin

Last edited by Martin Pugh; 17-12-2010 at 03:33 PM.
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Old 12-12-2010, 10:54 AM
TrevorW
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Nice one Martin although the nebula has more a pinkish tone on my screen
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Old 12-12-2010, 11:43 AM
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astroron (Ron)
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Very nice Martin
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  #4  
Old 12-12-2010, 12:52 PM
Martin Pugh
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Thanks guys
I was very careful to not have the salmon pink look about this - particularly as the Ha is in such abundance.

On reflection, it did look a bit too bright in the centre of the nebula, so I dropped out one of the Ha layers, and replaced it with luminance.

the link in the opening post has been updated.
cheers
Martin
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  #5  
Old 12-12-2010, 01:05 PM
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RB (Andrew)
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Stunning result Martin.
Love the colour.

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  #6  
Old 12-12-2010, 02:49 PM
Stevec35 (Steve)
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Another excellent result Martin.

Cheers

Steve
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  #7  
Old 12-12-2010, 03:21 PM
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Clearly a nice data set here Martin. Very smooth processing and certainly what I like to see. Not sure about the general look of this image though. Maybe it is the colour, I don't know.
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Old 13-12-2010, 01:05 PM
Martin Pugh
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Thanks chaps.

Paul - I know what you mean about this image. But you know, even with 3 hours of green exposure, you can barely tell its there, and only slightly more in blue. This is all emission nebula, and just red, red, red.

I will upload the Ha and you can see what I mean.
cheers
Martin
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  #9  
Old 13-12-2010, 01:54 PM
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richardo (Rich)
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This has turned out lovely Martin!
Your colouration to the overall neb is spot on. No salmon over tones here.

I've seen many images of this neb over the years and always thought, ho hum, never really did any think for me... I guess this would have come down to the gear we, as with our brethren in the northern hem had.. talking 6 + years ago.
Now with the advent of these huge chipped cameras and with superb optics/ filters coming to the party... well, one can only be impressed.

This image just shows how far we've come... from now on I'll take note and compare future images of this northern object with this one.
Excellent indeed... lots to see!

All the best
Rich
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Old 13-12-2010, 02:01 PM
Martin Pugh
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Thanks Rich - very nice words, deeply appreciated.

All

if you have a moment, take a look at the Ha frame - really, quite unbelievable.
http://tinyurl.com/2d6mya5


cheers
Martin
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  #11  
Old 13-12-2010, 02:28 PM
jase (Jason)
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You've done very well here Martin. Matching RGB data to such Ha contrast would be quite overwhelming. The Ha strength in this target would make it a challenge to process. The details in the Ha data set alone are very impressive. Good stuff.
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Old 13-12-2010, 02:29 PM
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richardo (Rich)
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Quote:
Originally Posted by Martin Pugh View Post
Thanks Rich - very nice words, deeply appreciated.

All

if you have a moment, take a look at the Ha frame - really, quite unbelievable.
http://tinyurl.com/2d6mya5


cheers
Martin
Martin, that is nice!
Some good structure going on...

Just looking at this, I reckon, and this is just me, maybe just mask in the more prominent darker structures as they are quite obvious in the Ha and washed a bit in the Hargb.
I think you'll find this will give a bit more depth.

Of course you could leave it and it's still a lovely image... just a thought is all.

All the best
Rich
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  #13  
Old 13-12-2010, 03:47 PM
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I see what you mean Martin. With that much emission it is no wonder that this object presents as very red. That Ha data is really rather striking. I think I prefer this to the colour image.
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  #14  
Old 13-12-2010, 04:06 PM
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zipdrive (Dave)
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Amazing!!
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  #15  
Old 13-12-2010, 07:07 PM
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multiweb (Marc)
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Wasn't too keen on the original but the blend looks great and makes this shot pop. The reds are so deep. Very cool.
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  #16  
Old 13-12-2010, 07:19 PM
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I like the Ha version, more detail.
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  #17  
Old 13-12-2010, 09:21 PM
Hagar (Doug)
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WOW, detail in this huge image is outstanding Martin but I'm not sure about the colour. Doesn't seem a rich enough red and still has that pinkish Hue.
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  #18  
Old 14-12-2010, 11:49 AM
Martin Pugh
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Thank you all.

Yes Fred - I think agree, the Ha was a real pleasure to deal with, but as Jase has hinted at - the HARGB combination was not straightforward at all.

Rich - thanks for the suggestion. Going to do that, and I am going to drop the saturation a little.

cheers
Martin
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  #19  
Old 14-12-2010, 07:04 PM
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strongmanmike (Michael)
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Hey that Halpha is amazing Martin, nice job.

The colour version seems to have lost the impact and detail present in the Halpha, probably to be expected though and it is still a lovely image for sure anyway .

Mike
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  #20  
Old 16-12-2010, 04:41 PM
Martin Pugh
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Thanks Mike

I am working on trying to improve the colour version.

cheers
Martin
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