Note: this is an archived version which has been superseded.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

G21.8−3.0 ADS: search fulltext or title/keyword/abstract

• Right Ascension: 18 41 50
• Declination: −11 16
• Size (/arcmin): 60
• Type: S
• Flux density at 1 GHz (/Jy): 5
• Spectral Index: 0.7

Radio: Shell, polarised in E.

Optical: Filaments in N.

References:

• Gao et al. 2020, MNRAS, 493, 2188. Urumqi 25-m at 5 GHz (9.'5), Effelsberg 100-m at 2.4 to 2.7 GHz (4.'7 to 4.'2) including polarisation, and other observations. ADS

Last updated: 20 Dec 2022

home | documentation | detailed listings | summary listings

Dave Green / Cambridge, UK /