Comets in 2018

{| class=wikitable style="text-align:center; font-size:11px; float:right; margin:2px" |- bgcolor= style="font-size: smaller;" | colspan="8" style="text-align:center;"|Perihelion distanceat different epochs |- ! Epoch !! Perihelion(AU) |- | 1894 || 1.23 |- | 1900 || 0.93 |- | 1985 || 1.03 |- | 2031 || 1.07 |- | 2078 || 0.97 |}

{| class=wikitable style="text-align:center; font-size:11px; float:right; margin:2px" |- bgcolor= style="font-size: smaller;" | colspan="8" style="text-align:center;"|Perihelion distanceat different epochs |- ! Epoch !! Perihelion(AU) |- | 1967 || 1.61 |- | 1974 || 1.26 |- | 1986 || 1.08 |- | 2013 || 1.05 |- | 2035 || 1.08 |- | 2046 || 1.22 |- | 2059 || 1.98 |- | 2095 || 2.01 |}

Comet Grigg–Skjellerup (formally designated 26P/Grigg–Skjellerup) is a periodic comet. It was visited by the Giotto probe in July 1992. The spacecraft came as close as 200 km, but could not take pictures because some instruments were damaged from its encounter with Halley's Comet. The comet last came to perihelion (closest approach to the Sun) on 25 December 2023, but was 1.8 AU from Earth and only 31 degrees from the Sun.

38P/Stephan–Oterma (also known as Comet Stephan–Oterma) is a periodic comet with an orbital period of 38 years. It fits the classical definition of a Halley-type comet with (20 years < period < 200 years). It was discovered on 22.9 January 1867, by Jérôme Eugène Coggia at Marseilles Observatory, France. On 25.86 January Édouard Stephan confirmed it was a comet. It was recovered in 6 November 1942 by the Finnish astronomer Liisi Oterma.

{| class=wikitable style="text-align:center; font-size:11px; float:right; margin:2px" |- bgcolor= style="font-size: smaller;" | colspan="8" style="text-align:center;"|Perihelion distanceat different epochs |- ! Epoch !! Perihelion(AU) |- | 1929 || 5.68 |- | 1967 || 3.55 |- | 2026 || 4.84 |- | 2034 || 3.84 |}

49P/Arend–Rigaux is a periodic comet with a 6.75-year orbit around the Sun. It is the first of three comets discovered by Belgian astronomer Sylvain Arend and the only one for Fernand Rigaux.

37P/Forbes is a periodic comet in the Solar System. The orbit of this comet passes close to the planet Jupiter however it orbit changes frequently. It was discovered on August 1, 1929, by Alexander F. I. Forbes in South Africa. The comet nucleus is estimated to be in diameter.

48P/Johnson is a periodic comet in the Solar System.

130P/McNaught–Hughes is a Jupiter-family comet with a 6.22-year orbit around the Sun. It is the second of two comets co-discovered by Robert H. McNaught and Shaun M. Hughes.

125P/Spacewatch is a Jupiter-family comet with a 5.53-year orbit around the Sun. It was discovered on 8 September 1991 by Tom Gehrels using the 0.91 m Spacewatch telescope at the Kitt Peak National Observatory. It was the first comet discovered with the use of a CCD, and also the faintest comet upon discovery up to that point. Its nucleus has a diameter of .

60P/Tsuchinshan, also known as Tsuchinshan 2, is a Jupiter-family comet with an orbital period of around 6.63 years. Tsuchinshan is the Wade-Giles transliteration corresponding to the pinyin Zǐjīn Shān 紫金山, which is Mandarin Chinese for "Purple Mountain".

143P/Kowal–Mrkos is a periodic comet in the Solar System.

comet

periodic comet

159P/LONEOS is a periodic comet in the Solar System.

82P/Gehrels is a periodic comet that was discovered on 27 October 1975, by Tom Gehrels at the Palomar Mountain Observatory in California having a faint nuclear brightness of magnitude 17.

64P/Swift–Gehrels is a periodic comet in the Solar System which has a current orbital period of 9.23 years.

comet

169/NEAT is a periodic comet in the Solar System. It is the parent body of the alpha Capricornids meteor shower in late July. 169/NEAT may be related to comet P/2003 T12 (SOHO).

240P/NEAT is a Jupiter-family comet with an orbital period of 7.61 years. It was discovered by Near Earth Asteroid Tracking (NEAT) on 7 December 2002.

Comet

243P/NEAT is a periodic comet currently with a 7.49-year orbit around the Sun.

comet