Comet Catalina beside the Pinwheel Galaxy and the stars Mizar and Alcor


José J. Chambó Bris

Hoya Redonda, Spain

Canon EFS 18-135 at 116mm. f/5.6 & Canon EOS-100D

Comet C/2013 US10 (Catalina) imaged on January 17th, 2016 in a nice conjunction with the Pinwheel Galaxy (M 101) at left, and the pair of stars most popular in boreal skies, Mizar and Alcor, at upper right. The comet shows its dust tail toward down, whereas that a very faint ionic tail is barely visible projected toward the quoted couple of stars.