Description of source "21306+5540" from Kim et al. (2015)

This object was rst detected as an UCHII by Ho et al. (1981) using the VLA about 60" north of a more extended HII region S128, and hence was named as S128N. Shepherd & Churchwell (1996) observed this source in the CO J=10 line and detected high-velocity wings (FWZI=33.7 km s1). There is no previous map-ping of this object in any CO line.