Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888  ·  Sh2-105
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Crescent Nebula, 



    
        

            Andrei Gusan
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Crescent Nebula

Getting plate-solving status, please wait...
Crescent Nebula, 



    
        

            Andrei Gusan
Powered byPixInsight

Crescent Nebula

Acquisition details

Dates:
Sept. 4, 2021 ·  Sept. 5, 2021
Frames:
Astronomik 1.25" Ha 6nm: 51×180(2h 33′) (gain: 120.00) -20°C bin 2×2
Astronomik 1.25" OIII 6nm: 61×180(3h 3′) (gain: 120.00) -20°C bin 2×2
Integration:
5h 36′
Avg. Moon age:
27.44 days
Avg. Moon phase:
5.11%
Bortle Dark-Sky Scale:
4.00

RA center: 20h12m09s.449

DEC center: +38°2020.43

Pixel scale: 0.952 arcsec/pixel

Orientation: -5.966 degrees

Field radius: 0.663 degrees

More info:Open 

Resolution: 2822x4144

File size: 3.7 MB

Data source: Backyard

Description

Crescent Nebula is an emission nebula powered by an ageing Wolf-Rayet star (WR 136) which created this web of luminous material during the late stages of its life. As a bloated, red super-giant, WR 136 gently puffed away some of its bulk, which settled around it. When the star passed from a super-giant to a Wolf-Rayet, it developed a fierce stellar wind - a stream of charged particles released from its surface - and began expelling mass at a furious rate. WR 136 age is estimated to be around 4.7 million years and it is nearing the end of its life. Within a few hundred thousand years, it is expected to explode as a supernova.

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Crescent Nebula, 



    
        

            Andrei Gusan