G74.9+1.2

CTB 87

Radio: Filled-centre, with high polarisation and high frequency turnover.
X-ray: Centrally brightened.
Point sources: Compact X-ray source in SE.
Distance: HI absorption indicates 12 kpc, optical extinction gives 6.1 kpc.

References:

Last updated: 13 May 2017


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Dave Green/Cambridge, UK/