Comet 2010 S1 LINEAR

Comet 2010 S1 LINEAR is very distant comet. In July 2011 it was about half way between Jupiter and Saturn. By year's end it was still beyond the orbit of Jupiter. At perihelion in late 2011, it was still still more than 6AU from the Sun. It reached around 14th magnitude in late 2013. When the first image below was taken, the comet was around 16th magnitude. By the time of the last image, it had brightened to about magnitude 13.0 and almost lost amongst the rich background of the northern Milky Way.