Comet Pan-STARRS is heading for a close encounter with the sun just inside the orbit of Mercury that could significantly boost its visibility in early March. At that time, the comet will be visible to northern-hemisphere observers as well. A video from NASA explores the possibilities. www.spaceweather.com
More about Comet Lemmon: 3D orbit, ephemeris, light curves; and Comet Pan-STARRS: 3D orbit, ephemeris, light curves.