Description of source "G75.78+0.34" from Kim et al. (2019)

G75.78+0.34 (ON 2) shows multiple maser lines between 25 and +20 km s1 in 2010 and 2011 (Figure 1). We detected a weak redshifted HV component at a velocity of 44.5 km s1 only in 2010. The HV line has not been detected either in the H2O maser monitoring observations of Lekht et al. (2006) from 1995 to 2004 or in the VLA observation of Hofner & Churchwell (1996) due to their short velocity coverages. In the VLA image of Hofner & Churchwell (1996) a cluster of H2O maser features with velocities between 20 and +15 km s1 are located 200 from the front of this cometary UCHii.