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NGC 6543, 20000x400ms with 250mm with asi224mc

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#1 exaxe

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Posted 01 May 2016 - 01:21 PM

Hello,

 

The Dragon is low on the horizon early in the night (30 °) but the nights are longer and stable (usually) in the spring so I tried some quick poses this magical nebula.

I did a mixture of 2 layers with my editor:
   46000x1s a layer to the background and stars almost 13h over 3 nights: 12,13 and 19 March.
I watched with SerPlayer 19h (accelerated x 24) to remove too degraded parts, then with Pipp I any linked and cut into BMP for Iris stacks me everything. For this part there was the goal of the chopper corolla outside, I did not get elsewhere! only a little bit.
   For the main subject I enjoyed a lull in the 19 March to 1 am for me to do with my Barlow 1.3x to 400ms.
I kept 50% on 40000 or 2:10 with Autostakkert, I wanted the maximum tint in the colors of the surroundings of the nebula.

I have mixed everything with photoshop, then  used  RawTherapee (great software and above all free!) for the  sharpeness.

 

my equipment:

telescope newtonian 250mm F:4.8 with the camera  ASI224mc

the result:

sVxyziBU9LTLG4ZdCHhrRtDrUfg.jpg

 

Stephane

 

 

 

 



#2 Magellanico

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Posted 01 May 2016 - 06:03 PM

Nice picture. Keep posting more!



#3 exaxe

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Posted 02 May 2016 - 10:47 PM

thank you Magellanico



#4 R Botero

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Posted 03 May 2016 - 01:52 AM

Great result Stephane! :waytogo: All your dedication paid off. Superb colours and detail in the PN.

Roberto

#5 exaxe

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Posted 04 May 2016 - 06:18 AM

thank you Roberto



#6 FirstC8

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Posted 06 May 2016 - 08:49 AM

That is some great lucky imaging result!

What computing power and software do you use to handle such large amount of data?

Edited by FirstC8, 06 May 2016 - 08:51 AM.


#7 andysea

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Posted 06 May 2016 - 12:25 PM

That is so cool! I have the same camera but haven't used it yet.



#8 calypsob

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Posted 06 May 2016 - 01:06 PM

Would this work at f11?



#9 exaxe

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Posted 06 May 2016 - 02:36 PM

thank you FirstC8, I used Autostakkert! ,Pipp and Iris, that software dedicated to the planets...

thank you Andy

No Calypsob, I work to F:4.8 and F:6.2 (4.8 with 1.3 barlow Televue)



#10 hytham

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Posted 06 May 2016 - 02:59 PM

I keep saying I need to go try this out at my club, but I really need to actually get off of my butt to try this out.

What barlow are you using? Do you find that it introduces any colour aberrations? I have two Televue Powermates on hand (2.5x and 4x), but even with their quality I'm suspect that they would not introduce any additional problems.

 

Thank you for the post. It's awesome seeing stuff like this!



#11 astrovienna

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Posted 06 May 2016 - 04:50 PM

thank you FirstC8, I used Autostakkert! ,Pipp and Iris, that software dedicated to the planets...

thank you Andy

No Calypsob, I work to F:4.8 and F:6.2 (4.8 with 1.3 barlow Televue)

Televue has a 1.3x barlow?  I didn't know that.  Is it still manufactured?

 

Kevin



#12 exaxe

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Posted 06 May 2016 - 05:10 PM

No Kevin, it's the 2x Televue but by unscrewing the back you get the lower grossiments to 2x, I measured the coefficients, it's my blog:

http://astrophoto17....ofond-c27142406



#13 calypsob

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Posted 06 May 2016 - 06:53 PM

Im really wanting to try this. I have a c11 but no reducer so its f11. I also have an rc8 with is f8 and f6. Im wondering if my exposures would be shoot enough to be "lucky imaging with my asi120mm



#14 exaxe

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Posted 07 May 2016 - 05:19 AM

you can try on bright objects, but I would advise you still acquire a reducer.
The purpose of this technique is to reduce the exposure time,it is necessary to have the light...



#15 GA-HAMAL

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Posted 07 May 2016 - 05:56 AM

Nice image :) But do not give up yet, ASI224MC can better
 
NGC6543color.jpg

Newton 305/1500 + ASI224MC

#16 FirstC8

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Posted 07 May 2016 - 07:34 AM

Both equally great images. In this case clearly "bigger will be better" but looked to me seeing is limiting.

Hauling large newts up a dark mountain isn't the easiest thing to do but likely the only way to get more resolution.

Can you provide similar exposure detail?

Edited by FirstC8, 07 May 2016 - 07:43 AM.


#17 GA-HAMAL

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Posted 08 May 2016 - 02:31 AM

Both equally great images. In this case clearly "bigger will be better" but looked to me seeing is limiting.


Must patiently try :)
 

Hauling large newts up a dark mountain isn't the easiest thing to do but likely the only way to get more resolution.


Exactly
 

Can you provide similar exposure detail?


Yes

#18 exaxe

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Posted 18 May 2016 - 03:33 PM

thank you Ga-hamal,




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