This is an AstroGrav video that shows a simulation of the path of Comet 46P/Wirtanen as seen from Earth between early August 2018 and late March 2019.
The J2000 celestial reference frame and equator are shown. From mid-November 2018 until early January 2019, the comet moves rapidly north, crossing the equator on 10th December. The bright object that can be seen moving very rapidly from right to left about once a month is the Moon.
