Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  B345
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W63/G082.2+5.3 - An ancient supernova shell, Prath Pavaskar
W63/G082.2+5.3 - An ancient supernova shell, Prath Pavaskar

W63/G082.2+5.3 - An ancient supernova shell

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W63/G082.2+5.3 - An ancient supernova shell, Prath Pavaskar
W63/G082.2+5.3 - An ancient supernova shell, Prath Pavaskar

W63/G082.2+5.3 - An ancient supernova shell

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Description

This is a 2-panel mosaic.
The oval shaped shell is the remnant of an ancient supernova. It is located in a busy region in Cygnus at a distance of ~3 kpc (~10,000 ly). It spans ~75 pc or ~250 ly in actual size. The explosion most likely occurred ~18,000 years ago with an ejecta mass of ~1.4 solar masses.
I couldn't get a good enough OIII signal due to the high altitude haze from the wildfires. This is my best attempt at bringing out the detail in the shell.

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  • Final
    W63/G082.2+5.3 - An ancient supernova shell, Prath Pavaskar
    Original
    W63/G082.2+5.3 - An ancient supernova shell, Prath Pavaskar
    C

C

Description: Annotated version:

C* = Carbon Star,
G = Galaxy,
No* = Nova,
OpC = Open Cluster,
SNR = Supernova Remnant

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W63/G082.2+5.3 - An ancient supernova shell, Prath Pavaskar