
https://www.legacysurvey.org//viewer/?ra=352.0833&dec=-53.8594&layer=ls-dr10-grz&zoom=12
Oh yeah, looks like it!
https://www.legacysurvey.org/viewer/ccd/ls-dr10/decam-459211-S14.xhtml?rect=-1,477,100,100
https://www.legacysurvey.org/viewer/ccd/ls-dr10/decam-459214-S14.xhtml?rect=1026,491,100,100
Dang

The comet is probably C/2013 US10 ( Catalina )
it is in the correct constellation
http://www.aerith.net/comet/catalog/2013US10/2013US10.html