Thor's Helmet / NGC 2359

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cataclysm
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Thor's Helmet / NGC 2359

Post by cataclysm »

Hi all,
This is the most difficult object I had imaged so far. Initial attempt with light pollution supression UHC filter nearly ended in failure. I can hardly extract much details even when the camera sensor had reached saturation.
I had more success with narrowband filters, especially with OIII, but required much longer exposures.

Imaging info:

Ota: TV Genesis SDF
Camera: Canon 350D ( modified & cooled )
Mount: Losmandy GM8
Exposures: 10 X 10 Minutes ISO1600 H-alpha
10 X 10 Minutes ISO1600 OIII
8 X 3 Minutes ISO1600 UHC

Image
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Meng Lee
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Post by Meng Lee »

Once again, an amazing image.

Oh then as you mentioned, UHC had hardly any details, so the 8 x 3 minutes of UHC you also incooperate it into the pic?
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cataclysm
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Post by cataclysm »

Once again, an amazing image.

Oh then as you mentioned, UHC had hardly any details, so the 8 x 3 minutes of UHC you also incooperate it into the pic?
Thanks Meng Lee. Yes UHC filter does not yield much details, but it helps to create a more normal star colours.
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perseid
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Post by perseid »

WOW, WOW, WOW

This is a very difficult object to image. I have tried it once but failed. Looking at your encouraging result, I'll try to image it next time the sky clears.

BTW, you cooled camera worked great. The noise level is so low for a 10mins shot.
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Meng Lee
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Post by Meng Lee »

That means you used UHC as red channel? OIII as green channel and H-alpha as blue channel?
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Post by Airconvent »

Nice effort! ...its looks more like a snail though.. :lol:
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Post by rcj »

amazing amount of dedication and effort, Kelvin! :)
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zong
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Post by zong »

That's in Singapore? Oh man! Great work!
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cataclysm
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Post by cataclysm »

Hi all, thanks!
That means you used UHC as red channel? OIII as green channel and H-alpha as blue channel?
Not quite, I not into mapped colour yet. Just blend them naturally, Halpha as red, OIII for the blue green and UHC as white light to normalize the star colours. Still experimenting la.... :)
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zackae
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Post by zackae »

Good Job there man. Even though it's a little small at least the colour details make it look cool.
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