23P/Brorsen–Metcalf
Comet
23P/Brorsen–Metcalf is a periodic comet with an orbital period of 70 years. It fits the classical definition of a Halley-type comet with. It was first discovered by Theodor Brorsen at the Altona Observatory on July 20, 1847, and again by Kaspar... Wikipedia
Discovered: July 20, 1847
Orbits: Sun
Discoverers: Theodor Brorsen and Joel Hastings Metcalf
Aphelion: 33.65 AU
Last perihelion: September 11, 1989
Max. orbital speed: 60.2 km/s @ perihelion
Next perihelion: June 8, 2059