Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  The star 9Cyg  ·  The star φCyg
G65.3+5.7 SNR, Giuseppe Donatiello
G65.3+5.7 SNR
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G65.3+5.7 SNR

G65.3+5.7 SNR, Giuseppe Donatiello
G65.3+5.7 SNR
Powered byPixInsight

G65.3+5.7 SNR

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Description

Image credit: ESO/Dss2/ Giuseppe Donatiello
19h 33m 00" +31° 10' 
G65.3+5.7 is an extremely faint and large supernova remnant (SNR) at the head of Cygnus, on the border of Vulpecula discovered by Gull, Kirshner, and Parker in 1977. It has dimensions comparable to the brightest and more famous Veil Nebula in Cygnus, but it is much weaker.
Its distanance is about 800 pc (2600 light year) and an angular dimensions about 3x4 degrees (6x8 lunar diameter!).
The radio pulsar PSR J1931+30, with a period of 582 ms, is located within the boundaries of G65.3+5.7 offset by 45' from the geometrical center of the remnant. With just this information an association of the pulsar with the remnant cannot be claimed. In 2002, it’s age was estimated to be about 27,500 years old.
Here, I’ve mapped H-alpha to red and [OIII] to blue.  The whole object is extremely dim in both channels.

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G65.3+5.7 SNR, Giuseppe Donatiello