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poppasmurf

Pencil Nebula

16 posts in this topic

Latest WIP project image, NGC 2736 (Pencil Nebula), so far I have collected  2 hrs  of each channel. Here's a quick throw together to see how it's coming along. I will collect more data as time permits, looking for around 10 hrs total for RGB, and maybe 10 or more hrs of Luminance.

I may even start from scratch on this one, as I have a reducer on its way for a slightly larger FoV, but we'll see.

Usual kit, GSO RC8, belt modded NEQ6, Moravian G2 2000. All processing done in PI.

I quite like the colours in this nebula, I find them to be rather striking.

C & C welcome people.

 

Shane

NGC_2736_RGB_Final.jpg

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Beautiful wispy detail already resolved Shane. And I must have been on another planet. When did you get the GSO RC8?

Ray

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That is very nice with fairly short data!
Greg

 

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11 hours ago, Radar said:

Beautiful wispy detail already resolved Shane. And I must have been on another planet. When did you get the GSO RC8?

Ray

Thanks mate. LOL :huh: I have had the RC for several years now, if memory serves, something like 7 years.

 

6 hours ago, wingeing Pom said:

That is very nice with fairly short data!
Greg

 

Thanks Greg, I have been able get a max of 10 min guided subs out of the NEQ6 since the belt mod. Previously guided subs maxed out at 4.5 to 5 min before noticeable elongation of stars. I still get a bit of field rotation depending on where I'm imaging, but that is to be expected. Also there is some curvature in the corners of my images I believe, but I can live with that at the moment.

 

Shane

 

Shane

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Nice one Shane. Colour and detail look good. Definitely a keeper. 

Dan.

 

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More data added to previous data for approx 11 hrs total, with a quick throw together (really not happy with it yet). I used a synthetic Luminance for this but I think I will aquire some proper Lum and more RGB as well.

 

Shane

LRGB.jpg

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Apart from the noise through there its looking pretty good mate.

Ray

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Here is the final, after collecting the remaining data last night. A total of 25 hrs integration time, 12.5 of the RGB, and 12.5 for Luminance, 25 x 10min each of R,G,B, with a synthetic Luminance made from the 75 raw RGB frames. 

 

Shane

 

NGC2736LRGB.jpg

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And the RGB version. No Luminance added, not sure which I actually prefer, although the LRGB version appears a lot smoother.

 

Shane

 

 

NGC2736RGB.jpg

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Yeah its a tough one with Luminance. I noticed that in some of my photos adding a luminance channel doesn't make that much of a difference if any. If you are binning 1x1 for lum and 2x2 for RGB then Lum should certainly reduce the background noise.

Ray

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I only shoot 1x1 binning Ray for RGB, I haven't actually taken any L for this image. I used the grayscale RGB (1x1 binned) as a "Synthetic L".

 

Shane

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That came out really well - the integration time paid off :)

Greg

 

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Thanks Greg, I follow Warren Kellers' law of diminishing returns and only use the 30 best subs for integration. Those were 10 min subs, but I have now been able to push that out to 15 min on the EQ6, which i believe is awesome for a budget mount. So far the subs for my next target are looking great, I have collected 40 odd red channel subs to pick the best 30 from.

 

Shane

 

Shane

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