UPDATE: T20 and T14 are at 90 degrees not 0 degrees as illustrated. This will alter significantly how you make mosaics.
Chart of comet C/2013 US10 between the 14th to 17th of January, 2016 as seen from Mayhill New Mexico at astronomical twilight in the morning. The rectangles are the field of view of T20, T14 and T3 have a similar FOV. Click to embiggen.
If you have been following comet C/2013 US10, you will have been noticing, aside from the gorgeous double tail, that many fields are dotted with tiny galaxies.
This will change on the 13th and 14th and 16th and 17th (UTC) when the comet is relatively near to the Whirlpool galaxy (mag 8; 13th and 14th) and M101 (mag 7, 16th and 17th). The comet should be high enough for imaging from 1 am local time to astronomical twilight (around 5:15 am local time)
For most of these shots you will need to make a mosaic to capture the galaxy and the comet at their best. Here is my guide to making mosaics using the iTelescopes (in this particular one I was looking at the comets tail, but the same applies to any form of mosaic).
After this the comet traverses several fields of tiny galaxies, and on the 29th it is in mosaic distance of NGC 4236-1 (magnitude 10, 21.9'x7.2')