Contains:Ring nebula in Lyra, M 57, NGC 6720, IC 1296
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M57 Ring Nebula, 




    

        star-watcher.ch
M57 Ring Nebula

Technical card

Resolution: 1418x928

Dates: May 15, 2017

Frames: Astronomik CLS-CCD Clip Filter: 78x60" ISO800

Integration: 1.3 hours

Darks: ~30

Bias: ~43

Avg. Moon age: 18.88 days

Avg. Moon phase: 82.00%

Bortle Dark-Sky Scale: 6.00

Astrometry.net job: 1579221

RA center: 283.396 degrees

DEC center: 33.029 degrees

Pixel scale: 1.078 arcsec/pixel

Orientation: 179.742 degrees

Field radius: 0.254 degrees

Locations: Derendingen 454m, Solothurn, SO, Switzerland

Data source: Unknown

Description

First light for my new Bahtinov mask. Finally the typical pattern is clearly visible in LiveView :-)

f/6.3 ISO800 60s, 2x drizzled

M57 is a planatery nebula. 2300 LY away from Earth. The nebula emissions contains expanding and glowing ionized gas, expelled from red giant stars in the last stage of evolution before they become white dwarfs (center star).

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star-watcher.ch
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    Original
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M57 Ring Nebula, 




    

        star-watcher.ch