Comets in 2015

67P/Churyumov–Gerasimenko (abbreviated as 67P or 67P/C–G) is a Jupiter-family comet. It is originally from the Kuiper belt and has an orbital period of 6.45 years as of 2012, a rotation period of approximately 12.4 hours, and a maximum velocity of . Churyumov–Gerasimenko is approximately at its longest and widest dimensions. It was first observed on photographic plates in 1969 by Soviet astronomers Klim Ivanovych Churyumov and Svetlana Ivanovna Gerasimenko, after whom it is named. It most recently came to perihelion (closest approach to the Sun) on 2 November 2021, and will next come to perihe

{| 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 recent epochs |- ! Epoch !! Perihelion(AU) |- | 2028 || 1.310 |- | 2022 || 1.306 |- | 2015 || 1.349 |- | 2008 || 1.355 |}

'''6P/d'Arrest (also known as d'Arrest's Comet or Comet d'Arrest''') is a periodic comet orbiting between Mars and Jupiter once every 6.54 years. It is the second of three comets discovered by German astronomer, Heinrich Ludwig d'Arrest. It next comes to perihelion 1.35 AU from the Sun on March 31, 2028, when it is expected to brighten to around apparent magnitude 11.

7P/Pons–Winnecke (also known as Comet Pons–Winnecke) is a periodic Jupiter-family comet with a six-year orbit around the Sun.

long-period comet

10P/Tempel, also known as Tempel 2, is a Jupiter-family comet with a 5.36-year orbit around the Sun. It was discovered on 4 July 1873 by Wilhelm Tempel. At the perihelion passage on 2 August 2026 the solar elongation is calculated at 164 degrees, with apparent magnitude approximately 8, with closest approach to Earth on 3 August 2026 at a distance of .

Comet Kopff or 22P/Kopff is a Jupiter-family comet with a 6.36-year orbit around the Sun. Discovered on 23 August 1906, it was named after its discoverer, August Kopff. The comet was missed on its November 1912 return, but was recovered on June 1919 and has been seen at every apparition since. Close approaches to Jupiter in 1938 and 1943 decreased the perihelion distance and orbital period. 22P/Kopff’s last perihelion passage was 18 March 2022.

42P/Neujmin, also known as Neujmin 3, is a periodic comet 2 km in diameter. It will next come to perihelion on 14 January 2026 at magnitude 19.

88P/Howell is a periodic comet with a 5.5 year orbital period. It was discovered on 29 August 1981, by Ellen Howell. In 1975 the comet's perihelion (closest approach to the Sun) was 1.9 AU, but a close approach to Jupiter in 1978 perturbed the perihelion distance closer to the Sun. During the 2009 apparition the comet became as bright as apparent magnitude 8.

solar system comet

Comet Spitaler is a Jupiter-family comet with a 7.1-year orbit around the Sun. It is the only comet discovered by Austrian astronomer, Rudolf Ferdinand Spitaler.

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.

205P/Giacobini is a Jupiter-family comet with an orbital period of 6.68 years. It was discovered by Michel Giacobini on 4 September 1896 and then it was lost until it was recovered by Koichi Itagaki on 10 September 2008. The comet was then found to have fragmented into three pieces.

51P/Harrington is a periodic comet in the Solar System.

Oort cloud comet

86P/Wild (pronounced 86P/Vilt) is a periodic comet in the Solar System with a current orbital period of 6.84 years. Its nucleus is estimated to have an effective radius of 0.37 ± 0.02 kilometers.

61P/Shajn–Schaldach is a periodic comet in the Solar System with a current orbital period of 7.49 years.

44P/Reinmuth or Reinmuth 2 is a Jupiter-family comet that is greatly perturbed by the gas giant Jupiter. The diameter of this comet is estimated at and its absolute magnitude at 14.

92P/Sanguin, also called '''Sanguin's Comet or Comet Sanguin''', is a Jupiter-family comet discovered on 15 October 1977, by Juan G. Sanguin at Leoncito Astronomical Complex.

comet

412P/WISE is an Encke-type comet with a 5.5-year orbit around the Sun. It is the first of many comets discovered by the Wide-field Infrared Survey Explorer (WISE), and has since been followed by ground observatories, among them the Mauna Kea Observatory.

comet, inner Oort cloud object, and Amor near-Earth object

Comet Lagerkvist–Carsenty is a distant Jupiter-family comet with a 17-year orbit around the Sun. It was co-discovered by two European astronomers, Claes-Ingvar Lagerkvist and Uri Carsenty.

Comet