Comet and Arcturus

Comet C/2013 US10 (Catalina) on 29-Dec-2015 at between half-past five and six o'clock a.m. (Eastrern European Time) from Kyiv (Osokorky) in a rare clear (and frosty: -8*C) night which occurred for a long period of cloudy weather. A green spot in the lower-right quadrant is the comet; a bright orange star is Arcturus -- Alpha Boötes.

Comet's tails are dimmer than on 8-Dec, probably because of bigger distance between the comet and the Sun: at the time of shooting it was 171 million km while on 8-Dec the distance was 138 million km only so the comet's activity declined. The tails are visible in the second black-and-white picture with enhanced contrast.

Equipment: Canon EOS 600D + EF 50mm f/1.8 II on a fixed tripod.
Image made by averaging of 100 frames with exposure of 4s; ISO=3200; f/2.5.
Software: DeepSkyStacker; FITStacker; RawTherapee.

Visual move of the comet on the stars' background during observation (about half an hour):

An orange star above the comet is HIP 69585 with a visual magnitude of about 6.5m.

Each frame of this animated GIF is composed of 10 initial frames (with exposure of 4s each).

Here is a simulation of comet's orbit (from http://ssd.jpl.nasa.gov/) for a period from my first observation (8 Dec) to the current:

Speed relative to Sun is ~39.4 km/s [on 29-Dec at 5:30 EET by http://www.heavens-above.com]
The comet is hyperbolic, so it will leave the Solar System.