Note: this is an archived version which has been superseded. The current SNR catalogue is at http://www.mrao.cam.ac.uk/surveys/snrs/

G21.0−0.4    

• Right Ascension: 18 31 12
• Declination: −10 47
• Size (/arcmin): 9×7
• Type: S
• Flux density at 1 GHz (/Jy): 1.1
• Spectral Index: 0.6

Notes: Has been called G21.04−0.47.

Radio: Shell.

References:

• Brogan et al. 2006, ApJ, 639, L25. VLA at 330 MHz (42'': S=2.3±0.2 Jy), plus other observations. ADS

Last updated: 29 Mar 2006