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Old 19-01-2016, 11:04 PM
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Paul Haese
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Knights season

Looks like a few horse heads are making their way onto the forums. I'll add to that.

Some comments about the image. I have had some issues with my camera. Not sure why yet but getting what looks like fogging in my lum and colour subs. It's led to some frustration in getting this image completed (for want of a better word). The detail is lacking in this image but it will have to wait until next season before I can get the data I want for detail. I have taken about 55 hours of data but only used 24 hours in this image due to fogging. I have done a fair bit of sharpening to combat the fogging, but got a fairly reasonable result I think.

On the plus side I used Alnitak as my AO guide star. It was interesting to watch it dancing around at 7hz. That speed certainly helped in the scheme of things, though I am sure I could run the AO much faster.

The image contains Luminance, Ha and RGB data.

Click here for larger resolution image.
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  #2  
Old 19-01-2016, 11:18 PM
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lovely image Paul. i particularly like the detail you brought out in the reflection nebula. well done
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  #3  
Old 19-01-2016, 11:22 PM
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Nice horse there Paul, great resolution and detail that you have brought out, even with all of the fogging plaguing you.
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  #4  
Old 20-01-2016, 01:07 AM
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Very nice detail in the Horse, I like those thin dark philaments.
Do you really think you can get more out of it?

Geert
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  #5  
Old 20-01-2016, 01:29 AM
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A great result.....and....Holy mole'......55 hours of data!?!

I hope my RC will get similar airtime
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Old 20-01-2016, 08:04 AM
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Still an exceptional picture.

Fogging might be related to ambient heat with sensor differential and abrupt cooling/heating cycling. How do you guys image in this heat anyway? It's hard on the gear and the user
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  #7  
Old 20-01-2016, 08:07 AM
Placidus (Mike and Trish)
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A lovely shot, Paul, and very productive for this time of year.

First impact of the colour is exceedingly pleasing. Then one notices the fine detail like the unicorn-horn on the beast's nose is very sharp - the AO is doing something. And finally the subtle dark features are there despite good contrast generally.

Lovely work.
Best,
M & T
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  #8  
Old 20-01-2016, 10:22 AM
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marc4darkskies (Marcus)
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More than reasonable Paul - a lovely result!
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Old 20-01-2016, 10:46 AM
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Very nice Paul. The size and composition reminds me so vividly of the classic Palomar photos I used to see when I was young.
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  #10  
Old 20-01-2016, 02:46 PM
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graham.hobart (Graham stevens)
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knights

cool Paul as always!
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  #11  
Old 20-01-2016, 04:57 PM
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Nice.
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  #12  
Old 20-01-2016, 05:01 PM
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A very good Horsehead Paul.

I admire your dedication.

Greg.
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  #13  
Old 20-01-2016, 06:16 PM
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That's a great result Paul

cheers
Allan
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  #14  
Old 20-01-2016, 07:12 PM
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That's a very good horse head Paul. I love the nice golden hue of the stars.

Cheers

Steve
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  #15  
Old 20-01-2016, 08:10 PM
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Very nice image Paul. I particularly like the colours, and as Greg mentioned, I also admire your dedication.
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  #16  
Old 20-01-2016, 08:19 PM
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very attractive image Paul - technically spot on as well with high resolution and great colour. Hope you sort out the camera soon.
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  #17  
Old 20-01-2016, 10:48 PM
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astronobob (Bob)
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Always a privilege to see your work Paul, such great clarity etc etc even when its 'as you say' - lacking detail' in your standards, I personally cant notice it.
Thanx for showing and sharing your work
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  #18  
Old 20-01-2016, 11:18 PM
topheart
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A very pleasing horsehead Paul!

Good luck with the camera fogging issue.

Cheers,
Tim
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  #19  
Old 21-01-2016, 07:43 PM
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Hi Paul,
The image is beautiful, but to me surprising details that are there!.
Cheers,
Fabiomax
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  #20  
Old 22-01-2016, 08:21 AM
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Thanks everyone for taking the time to comment. I appreciate the thoughts and the effort.

Quote:
Originally Posted by gvanhau View Post
Very nice detail in the Horse, I like those thin dark philaments.
Do you really think you can get more out of it?

Geert
Thanks Geert, yes I think I can get more detail. Not so much in the head but in the darker sections which have typically more detail. Rolf Olson's, Ken Crawford's and more recently Peter's images typically show this detail. This is being fogged out by in my images. SBIG thinks it might be the heater not working properly which is causing the fogging. Something I need to check on my next night down at the observatories.

Quote:
Originally Posted by Peter Ward View Post
A great result.....and....Holy mole'......55 hours of data!?!

I hope my RC will get similar airtime
Thanks Peter, I would not normally have taken this much data on the this particular object but have had to sort through subs that show any the tiniest hint of fogging and ditch those. Even still there are subs that must still have fogging. Its been a battle of attrition.


Quote:
Originally Posted by multiweb View Post
Still an exceptional picture.

Fogging might be related to ambient heat with sensor differential and abrupt cooling/heating cycling. How do you guys image in this heat anyway? It's hard on the gear and the user
Thanks Marc. SBIG think similarly, that the heater on the sensor window is either dislodged, not connect properly or not function properly. The heat is not so bad. We have been getting night temps at Clayton around the low to mid 20's for the last month or so. The delta on the camera is very good and it can hold -30C with only 55% power. The QSI on the other hand struggles a bit with the warmer weather.

Quote:
Originally Posted by Placidus View Post
A lovely shot, Paul, and very productive for this time of year.

First impact of the colour is exceedingly pleasing. Then one notices the fine detail like the unicorn-horn on the beast's nose is very sharp - the AO is doing something. And finally the subtle dark features are there despite good contrast generally.

Lovely work.
Best,
M & T
Thanks MnT, actually this time of the year in SA is usually pretty good with quite a few clear nights. The drier conditions tend to work in our favour unlike on the eastern side of the continent where humidity seems to go up quite a lot during this time.

I agree the AO is working well and I suspect I could have gone faster to produce sharper results. Alnitak is such a bright star. I might do some experimenting to see what sort of results I can get.

Quote:
Originally Posted by gregbradley View Post
A very good Horsehead Paul.

I admire your dedication.

Greg.
Thanks Greg, but its more like perseverance in reality. Limping to the line.
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