Comets in 2019

2I/Borisov, originally designated C/2019 Q4 (Borisov), is the first observed rogue comet and the second observed interstellar interloper, after ʻOumuamua. It was discovered by the Crimean amateur astronomer and telescope maker Gennadiy Borisov on 29 August 2019 UTC (30 August local time) in MARGO Observatory.

comet

31P/Schwassmann–Wachmann, also known as Schwassmann–Wachmann 2, is a periodic comet in the Solar System. It was discovered on 17 January 1929, at an apparent magnitude of 11. The comet has been seen at every apparition.

289P/Blanpain, formerly D/1819 W1 (Blanpain) is a short-period comet with an orbital period of 5.2 years. It was discovered by Jean-Jacques Blanpain on November 28, 1819 but was considered lost until it was recovered in 2013. It was last observed in 2020.

76P/West–Kohoutek–Ikemura is a Jupiter-family periodic comet in the Solar System with a current orbital period of 6.47 years.

322P/SOHO is the first periodic comet to be discovered using the automated telescopes of the Solar and Heliospheric Observatory (SOHO) spacecraft, and second to be given a numbered designation, after 321P/SOHO. At perihelion, it is six times closer to the Sun than the planet Mercury.

160P/LINEAR is a periodic comet in the Solar System. The comet came to perihelion on 18 September 2012, and reached about apparent magnitude 17.

168P/Hergenrother is a periodic comet in the Solar System. The comet, originally named P/1998 W2, returned in 2005 and got the temporary name P/2005 N2. It was last observed in January 2020 and may have continued fragmenting after the 2012 outburst.

Comet Taylor, also known as 69P/Taylor, is a Jupiter-family comet with a 7.64-year orbit around the Sun. It is the only comet discovered by South African astronomer, Clement Jennings Taylor.

138P/Shoemaker–Levy, also known as Shoemaker–Levy 7, is a faint Jupiter-family comet with a 7-year orbit around the Sun. During its 2012 perihelion, the comet brightened to about apparent magnitude 20.5.

Comet West–Hartley is a periodic comet with a 7.67-year orbit around the Sun.

78P/Gehrels, also known as Gehrels 2, is a Jupiter-family comet with a current orbital period of 7.22 years. It is the second periodic comet discovered by American astronomer, Tom Gehrels.

163P/NEAT is a periodic comet discovered on November 5, 2004 by Near-Earth Asteroid Tracking (NEAT) using the 1.2 meter Samuel Oschin telescope at Palomar Observatory.

373P/Rinner is a periodic comet with a 7.42-year orbit around the Sun. It is the first comet discovered by French astronomer, Claudine Rinner, and the first comet discovery from France since C/1997 J2 (Meunier–Dupouy).

171P/Spahr is a periodic comet in the Solar System. 171P/Spahr was recovered on 20–24 October 2011 at apparent magnitude 20.6 using the Faulkes Telescope South. 171P/Spahr is peaked at about magnitude 18 in 2012.

Long period comet

Comet

Jupiter-family comet

Comet McNaught 4, also known as 260P/McNaught, is a periodic comet with a 6.9-year orbit around the Sun. It is one of several comets discovered by Australian astronomer, Robert H. McNaught.