Note: this is an archived version which has been superseded. The current SNR catalogue is at

G31.9+0.0     3C391

Radio: Shell, brightest in NW, with low frequency turnover.
X-ray: Diffuse with central core.
Distance: HI absorption is seen to the tangent point (8.5 kpc).


Last updated: 31 Mar 2006

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Dave Green/Cambridge, UK/