G189.1+3.0

IC443, 3C157

Radio: Limb-brightened to NE, with faint extension to the E.
Optical: Brightest to the NE, with faint filaments outside the NE boundary.
X-ray: Shell, brightest to the NE, plus compact source with nebula.
Point sources: X-ray source and nebula in S.
Distance: Optical observations imply 1.9 kpc.

References:

Last updated: 9 Apr 2019


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Dave Green/Cambridge, UK/