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Old 12-12-2013, 03:59 PM
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Peter Ward
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Horse Head

The nice thing about h-alpha is you don't need to worry about the moon or light pollution.

Perhaps I need to give this a snappy title, like "Storm rider" ... anyway, silly theatre aside....
I think the image does have some drama to it

Here is the link

Last edited by Peter Ward; 12-12-2013 at 05:10 PM.
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  #2  
Old 12-12-2013, 05:12 PM
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Yep, that is gorgeous.

Greg.
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Old 12-12-2013, 05:13 PM
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Negative Ghost Rider, the pattern is full...

Yeah, don't listen to those colour freaks like that Sidonio guy... there's nothing wrong with greyscale for we who must contend with artificial light pollution
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Old 12-12-2013, 06:08 PM
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Quote:
Originally Posted by LewisM View Post
Negative Ghost Rider, the pattern is full...

Yeah, don't listen to those colour freaks like that Sidonio guy... there's nothing wrong with greyscale for we who must contend with artificial light pollution
I got "good-tone" Goose


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Originally Posted by gregbradley View Post
Yep, that is gorgeous.

Greg.
Thanks Greg...Kinda works for me... I'll eventually do colour as well, but I like the light and shade with H-alpha only.
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Old 12-12-2013, 07:32 PM
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Yep....love the ' filaments ' rising out the top...good shot.

Col........
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Old 12-12-2013, 07:33 PM
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Great image, Peter
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  #7  
Old 12-12-2013, 07:40 PM
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That's very cool. Did you have to manage alnitak in anyway post process or is that the raw luminosity? What was the subs' duration and total integration time?
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Old 12-12-2013, 07:47 PM
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That's very cool. Did you have to manage alnitak in anyway post process or is that the raw luminosity? What was the subs' duration and total integration time?
Thanks Marc...no special attention paid to Alnitak, all adjustments were global.
I suspect the lack of scattering is due the smoothness of the AP optics. 6x 15 minute subs. Registration and stack with PI. The rest (curves) in PS6.

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Great image, Peter
Ta Laurie

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Yep....love the ' filaments ' rising out the top...good shot.

Col........
Glad you like it Col
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Old 12-12-2013, 07:51 PM
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6x 15 minute subs.
It is quite remarkable not to blow that star on a 15min sub. There is no hint of internal reflections either.
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  #10  
Old 12-12-2013, 08:33 PM
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Quote:
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It is quite remarkable not to blow that star on a 15min sub. There is no hint of internal reflections either.
You think so ....... sure, there are reflections, but I suspect they are being controlled by fairly strongly curved optics with excellent RMS smoothness..... I certainly wasn't doing anything fancy.
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Old 12-12-2013, 08:39 PM
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Quote:
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You think so ....... sure, there are reflections, but I suspect they are being controlled by fairly strongly curved optics with excellent RMS smoothness..... I certainly wasn't doing anything fancy.
Oh no, that's what I meant. The optics are flawless. I don't know of any other fast corrected system that would come even close to that result without light bouncing everywhere.
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Old 12-12-2013, 08:56 PM
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Nice one Peter. I think it looks better in Ha.

Cheers

Steve
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  #13  
Old 13-12-2013, 01:03 PM
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Quote:
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Nice one Peter. I think it looks better in Ha.

Cheers

Steve
Appreciated Steve.

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Oh no, that's what I meant. The optics are flawless. I don't know of any other fast corrected system that would come even close to that result without light bouncing everywhere.
Weelll...no problem with that
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  #14  
Old 13-12-2013, 02:45 PM
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Hi Peter -
stop making everyone jealous.

Seriously though - that's an amazing wide field in such a short time.
You've convinced me to use my Ha filter when the Moon is out.

cheers
Allan
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  #15  
Old 13-12-2013, 02:59 PM
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Nice Peter, very, very detailed. Hurray for NB in the city!

Regards
Steven
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  #16  
Old 13-12-2013, 07:53 PM
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Amazing amount of detail.
Well done.
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  #17  
Old 13-12-2013, 08:10 PM
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One of the finest monochrome images I saw. Who needs colour when there is so much going on here

Thanks for the view.

Alex
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  #18  
Old 13-12-2013, 08:30 PM
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Peter, did you use the wrong darks again? I could have sworn I looked at this a few days ago and it had more noise, but today when I took a look it looks better. Its a great image for its integration, I would love one of these scopes.
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  #19  
Old 13-12-2013, 09:29 PM
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Quote:
Originally Posted by Peter.M View Post
Peter, did you use the wrong darks again? I could have sworn I looked at this a few days ago and it had more noise, but today when I took a look it looks better. Its a great image for its integration, I would love one of these scopes.
No...but I did get the time to apply a little Pugh inspired noise-reduction-post-imaging magic.

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Originally Posted by alexch View Post
One of the finest monochrome images I saw. Who needs colour when there is so much going on here

Thanks for the view.

Alex
A pleasure Alex.

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Originally Posted by dutch2 View Post
Amazing amount of detail.
Well done.
Thanks.....hopefully might get some more data soon.

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Originally Posted by stevous67 View Post
Nice Peter, very, very detailed. Hurray for NB in the city!

Regards
Steven
Yep, H-alpha rocks

Quote:
Originally Posted by alpal View Post
Hi Peter -
stop making everyone jealous.

Seriously though - that's an amazing wide field in such a short time.
You've convinced me to use my Ha filter when the Moon is out.

cheers
Allan
NB certainly opens up otherwise lost opportunities.
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