NASA : Comet Lovejoy Dives Toward the Sun.

NOTE: This video loops 3
times. Another instrument watching for the comet was the Solar Dynamics
Observatory (SDO), which adjusted its cameras in order to watch the
trajectory. Not only does this help with comet research—such as how big
the comet is and what it's made of -- but it may also help orient
instruments on SDO. Since the scientists know where the comet is based
on other spacecraft, they can finely determine the position of SDO's