Note: this is an archived version which has been superseded.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


Notes: Early observations relate to the central core only.

Radio: Filled-centre, with high frequency turnover.
X-ray: Central core, with extended, faint halo.
Point sources: Central pulsar.
Distance: HI absorption indicates 4.6 kpc.


Last updated: 26 Apr 2006

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Dave Green/Cambridge, UK/