Encke's Comet is 4.8 km. As its official designation implies, Encke's Comet was the first periodic comet discovered after Halley's Comet (designated 1P/Halley)
nucleus of Halley's Comet (1P/Halley) reflects about four percent of the light that falls on it, and Deep Space 1 discovered that Comet Borrelly's surface
list of comets (bodies that travel in elliptical, parabolic, and sometimes hyperbolic orbits and display a tail behind them) listed by type. Comets are sorted
amounts of sodium. The second twin tail was a golden color and was made of dust, like the tail of Comet Hale–Bopp. The comet was brighter than C/2011 L4 (PanSTARRS)