
Be the first in the room — members see you arrive.
Join the roomThe Great Comet of 1819, officially designated as C/1819 N1, also known as Comet Tralles, was an exceptionally bright and easily visible non-periodic comet, approaching an apparent magnitude of 1–2, discovered 1 July 1819 by the German astronomer Johann Georg Tralles in Berlin. It was the first comet analyzed using polarimetry, by French mathematician François Arago.