Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  IC 1340  ·  NGC 6992  ·  NGC 6995  ·  Network nebula  ·  Veil nebula
Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !, 



    
        

            Ewam
Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !
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Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !

Acquisition details

Dates:
Sept. 10, 2015
Frames:
24×520(3h 28′)
Integration:
3h 28′
Avg. Moon age:
27.02 days
Avg. Moon phase:
6.99%

Basic astrometry details

Astrometry.net job: 823500

RA center: 20h56m11s.3

DEC center: +31°2356

Pixel scale: 1.621 arcsec/pixel

Orientation: 83.745 degrees

Field radius: 0.746 degrees

Resolution: 620x374

File size: 240.6 KB

Locations: La Gueule du Loup (Malonne), Namur, Namur, Belgium

Description

I've been quite happy with the Westrn Veil I could acquire in south of France, building up to 62 subs into the final picture you may have seen in my gallery...

> Now, over a period of 5 nights I've been acquiring already more than 60 subs of this Eastern part of the Veil complex. Last night I was lucky with some quality S-II subs, so I impulsively decided to share this very first SHO image : first version with only 3 unprocessed (no darks, etc.) subs, than adding !

The only denoise action I took here was a heavy 2 pixels median noise reduction and some color balancing.

Now VERSION E will be the last of this game : full image will be on a new page with probably more than 50 adequate subs

I will need hours of work to complete what I believe will be my best image to date, at least a very fun to work with :-)

E VERSION : I believe I screwed it up a little with too much "hardcore" noise reduction ; but as I had not much time these days... it will have to wait for next holidays :-)

DATA :

D VERSION :

Ha : 3 x 450'' / O-III : 3 x 450 / S-II : 2 x 720''

E VERSION :

Ha : 9 x 450'' / O-III : 11 x 450 / S-II : 4 x 720''

A VERSION :

Ha : 1 x 450'' @ 3200 iso ;

O-III : 1 x 450'' @ 3200 iso ;

S-II : 1 x 720'' @ 3200 iso ;

B VERSION : one more O-III sub

C VERSION : one more Ha sub (and color inversions to check out for unconspicuous details!)

1 sub from each night = 1 x 600''Ha / 1 x 450'' Ha / 2 x 450'' O-III / 1 x 720'' S-II

Comments

Revisions

  • Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !, 



    
        

            Ewam
    Original
  • Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !, 



    
        

            Ewam
    B
  • Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !, 



    
        

            Ewam
    C
  • Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !, 



    
        

            Ewam
    D
  • Final
    Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !, 



    
        

            Ewam
    E

Sky plot

Sky plot

Histogram

Eastern Veil nebula in SHO (NGC6995) - Too much enthusiasm : publishing a 3, 4, 5, 8 & 24 subs assembly !, 



    
        

            Ewam