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Contains:  Ring nebula in Lyra, M 57, NGC 6720, The star Sheliak (βLyr), The star ν2Lyr, The star ν1Lyr
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M57 - Ring Nebula - Lyra widefield, 


            Victor Van Puyenb...
M57 - Ring Nebula - Lyra widefield

M57 - Ring Nebula - Lyra widefield

Technical card

Resolution: 4600x3464

Dates:July 13, 2019July 22, 2019

ZWO B 31 mm: 22x120" (gain: 74.00) -15C bin 1x1
ZWO G 31 mm: 13x120" (gain: 74.00) -15C bin 1x1
ZWO H-alpha 7nm 31mm: 15x300" (gain: 200.00) -15C bin 1x1
ZWO R 31 mm: 9x120" (gain: 74.00) -15C bin 1x1

Integration: 2.7 hours

Darks: ~30

Flats: ~10

Flat darks: ~100

Avg. Moon age: 15.67 days

Avg. Moon phase: 81.10%

Bortle Dark-Sky Scale: 7.00 job: 2851277

RA center: 283.402 degrees

DEC center: 33.029 degrees

Pixel scale: 2.011 arcsec/pixel

Orientation: 270.710 degrees

Field radius: 1.608 degrees

Locations: Home balcony, Leuven, Belgium

Data source: Backyard


I acquired the data for this image while testing my new Pegasus Astro FocusCube 2 focus motor and ZWO tilt adapter. I needed a dense starfield to adjust the spacing of the imaging train, and including M57 was a nice bonus.

The spiral structure inside the Ring Nebula was enhanced with H-alpha data, blended as a luminance layer.



Victor Van Puyenb...
License: None (All rights reserved)


  • M57 - Ring Nebula - Lyra widefield, 


            Victor Van Puyenb...
  • Final
    M57 - Ring Nebula - Lyra widefield, 


            Victor Van Puyenb...


With insert (4X zoom)

Sky plot

Sky plot


M57 - Ring Nebula - Lyra widefield, 


            Victor Van Puyenb...