Note: this is an archived version which has been superseded.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

G6.4-0.1 W28

Notes: Has been called G6.6-0.2.

Radio: Several non-thermal sources in a ring, with flat spectrum core.
Optical: Filaments.
X-ray: Diffuse emission from most of the remnant.
Point sources: Young pulsar near edge of remnant.
Distance: Uncertain mean optical velocity indicates 3.5-4 kpc.


Last updated: 23 Aug 2000

Dave Green/MRAO, Cambridge, UK/