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Ring nebula M 57, 





    
        

            Christoph Lichtblau

Ring nebula M 57

Technical card

Resolution: 2410x2058

Dates:Aug. 13, 2018

Integration: 0.0 hours

Avg. Moon age: 2.40 days

Avg. Moon phase: 6.40%

Astrometry.net job: 2795299

Locations: Hans Ludwig Neumann Sternwarte, Kleiner Feldberg Taunus, Hessen, Germany

Description

Complete rework of that image.

M 57 the famous ring nebula in Lyra is and was always one of my most famous targets for astrofotography. Even in recent times, when I was using film material I was trying to get as much detail as possible from it. Last summer in the wonderful night of the perseid shower, I was in the dome to get it with my new ASI 1600 mm pro, while the others were watching the meteors outside. The 24 inch Cassegrain was used at f10 in secondary focus.

The exposures were as following:
Luminence 75x10 sec gain 350 bin1
Luminence 25x20 sec gain 350 bin1
H alpha 12nm 35x45 sec gain 350 bin1
Red 50x30 sec gain 350 bin2
Green 50x30 sec gain 350 bin2
Blue 50x30 sec gain 350 bin2

No guiding was used! So maximum exposure time was 45 sec, before stars begin to deform.
Because of constantely bad weather here in Germany I decided to make a complete new version of it. The pic is cropped.....

Hope you like it....CS,Christoph

Comments

Author

Christophorus
Christoph Lichtblau
License: None (All rights reserved)
4056
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Revisions

  • Ring nebula M 57, 





    
        

            Christoph Lichtblau
    Original
  • Final
    Ring nebula M 57, 





    
        

            Christoph Lichtblau
    B

Histogram

Ring nebula M 57, 





    
        

            Christoph Lichtblau