This image of Comet C/2012 X1 (LINEAR) has been taken on December 23 2013. Vicinity of the Moon affected the quality of this image, which however shows clearly the comet’s coma and tail. This image was a 240 seconds exposure taken using the T21 instrument (430mm f/4.5) of the iTelescope service.
Comet C/2012 X1 is approaching its perihelion, which will pass on February 21 2014. On Oct 25 2013 it had an outburst which increased its brightness by 6 magnitudes. Right now it is around 11th magnitude and should be visible in medium telescopes in the morning skies.
The comet is currently 268 million kilometers from the Sun and 345 million kilometers from Earth. Additional information available: