DR4, γ Cygni SNR

Notes: Has been called G78.1+1.8.

Radio: In complex region (early catalogues refer to other proposed remnants in this region).
Optical: Faint filaments, spectra indicate a SNR superposed on a HII region.
X-ray: Weak emission from the SE of the remnant.
Point sources: X-ray pulsar at edge of remnant, with nebula.
Distance: Associations with other objects suggests 1.7 to 2.6 kpc.


Last updated: 9 Apr 2019

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Dave Green/Cambridge, UK/