
Comet C/2013 US10 was discovered on 31 October 2013 by the Catalina Sky Survey, an automated system aimed at searching for asteroids and comets. As perihelion was expected on 15th November 2015 and the closest approach to Earth on 17th January 2016, the best “observing window” would be between late 2015 and early 2016. In the fall of 2015, the comet was a southern sky object, but its swift northward motion would rapidly increase its declination, so that it would […]

