Description of source "G305.21+0.21" from Ellingsen (2007)

G305.20+0.21 and G305.21+0.21 are separated by 22 arcsec and hence cannot be readily distinguished by these observations. Walsh & Burton (2006) suggest that this pair of sources consists of two star formation regions in different evolutionary stages, G305.21+0.21 being younger and G305.20+0.21 more evolved. G305.21+0.21 has a very similar peak intensity and spectral morphology to that seen more than a decade ago by Caswell et al. (1995b) and Goedhart et al. (2004) observed this source to show relatively little variability