Related Research Articles
4015 Wilson–Harrington is an active asteroid known both as comet 107P/Wilson–Harrington and as asteroid 4015 Wilson–Harrington. It passed 0.4 AU (60 million km) from Earth on 20 July 2022 and then passed perihelion on 24 August 2022. It seldom gets brighter than apparent magnitude 16. It will return to perihelion on 25 November 2026.
Comet 4P/Faye is a periodic Jupiter-family comet discovered in November 1843 by Hervé Faye at the Royal Observatory in Paris. Its most recent perihelia were on November 15, 2006; May 29, 2014; and September 8, 2021.
10P/Tempel, also known as Tempel 2, is a periodic Jupiter-family comet with a 5-year orbital period. It was discovered on July 4, 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 0.414 AU (61.9 million km).
28P/Neujmin, also known as Neujmin 1, is a large periodic comet in the Solar System. With a perihelion distance of 1.5AU, this comet does not make close approaches to the Earth.
47P/Ashbrook–Jackson is a periodic comet in the Solar System.
49P/Arend–Rigaux is a periodic comet in the Solar System.
52P/Harrington–Abell is a periodic comet in the Solar System.
117P/Helin–Roman–Alu, also known as Helin-Roman-Alu 1, is a periodic comet in the Solar System. It is a Quasi-Hilda comet.
159P/LONEOS is a periodic comet in the Solar System.
165P/LINEAR is a periodic comet in the Solar System. 165P/LINEAR has a perihelion distance of 6.8 AU, and is a Chiron-type comet with TJupiter smaller than 3 and a semi-major axis larger than Jupiter's.
11P/Tempel–Swift–LINEAR is a periodic Jupiter-family comet in the Solar System.
13P/Olbers is a periodic comet with an orbital period of 69 years. It fits the classical definition of a Halley-type comet with a period between 20 and 200 years. The comet last passed perihelion 30 June 2024 and it was previously seen in 1956. The next perihelion is in 2094.
Comet Finlay is a periodic comet with an orbital period of 6 years discovered by William Henry Finlay on September 26, 1886. The next perihelion passage is July 13, 2021 when the comet will have a solar elongation of 54 degrees at approximately apparent magnitude 10. It last came to perihelion on December 27, 2014, at around magnitude 10. Of the numbered periodic comets, the orbit of 15P/Finlay has one of the smallest minimum orbit intersection distances with the orbit of Earth (E-MOID). In October 2060 the comet will pass about 5 million km from Earth.
Comet Kopff or 22P/Kopff is a periodic comet in the Solar System. Discovered on August 23, 1906, it was named after August Kopff who discovered the comet. The comet was missed on its November 1912 return, but was recovered on its June 1919 return 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. On 13 July 2028 it will pass 0.353 AU (52.8 million km) from Earth.
94P/Russell 4 is a periodic comet in the Solar System. It fits the definition of an Encke-type comet with. It was discovered by Ken Rusell on photographic plates taken by M. Hawkins on March 7, 1984. In the discovery images, Russell estimated that the comet had an apparent magnitude of 13 and a noticeable tail of 5 arc minutes. In the year of discovery, the comet had come to perihelion in January 1984.
82P/Gehrels is a periodic comet that was discovered on October 27, 1975, by Tom Gehrels at the Palomar Mountain Observatory in California having a faint nuclear brightness of magnitude 17.
255P/Levy, formerly P/2006 T1 and P/2011 Y1, is a periodic comet with an orbital period of 5.25 years. It last came to perihelion on 14 January 2012. During the 2006 passage the comet achieved an apparent magnitude of ~9.5. Levy (PK06T010) was believed to have been recovered on 3 June 2011 at magnitude 19.8, but other observatories were unable to confirm a recovery. It was most likely a false positive because of large residuals. Levy was recovered on 17 December 2011 at magnitude 19.8, and given the second designation 2011 Y1. It was then numbered.
62P/Tsuchinshan, also known as Tsuchinshan 1, is a periodic comet first discovered January 1, 1965 at the Purple Mountain Observatory in Nanking. It last came to perihelion on 25 December 2023 at around apparent magnitude 8, and was then 0.53 AU (79 million km) from Earth and 110 degrees from the Sun.
66P/du Toit is a periodic comet in the Solar System with a current orbital period of 14.78 years. It came to perihelion on 2018 May 19 at roughly apparent magnitude 12.
104P/Kowal, also known as Kowal 2, is a periodic Jupiter-family comet discovered by Charles T. Kowal in 1979. The orbit was confirmed after new sightings in 1991 and 1998.
References
- 1 2 3 "51P/Harrington Orbit". Minor Planet Center. Archived from the original on 2022-06-20.
- ↑ "Horizons Batch for 51P-D (90000595) on 2022-Oct-01" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2022-06-20. Retrieved 2022-07-06. (JPL#K222/5 Soln.date: 2023-May-04)
- ↑ Seiichi Yoshida (2016-05-14). "51P/Harrington". Seiichi Yoshida's Comet Catalog. Retrieved 2017-02-26.
- ↑ "Horizons Batch for 51P-A/Harrington (90000593) for Aug-Oct 2022". JPL Horizons. Archived from the original on 2022-06-21. Retrieved 2022-06-21. (JPL#K153/2, Soln.date: 2015-Oct-07)
- ↑ "Horizons Batch for 51P-A/Harrington (90000593) on 2022-Oct-03" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2022-06-20. Retrieved 2022-06-20. (JPL#K153/2, Soln.date: 2015-Oct-07)
- ↑ "Horizons Batch for 51P-D (90000595) for Aug-Oct 2022". JPL Horizons. Archived from the original on 2022-06-21. Retrieved 2022-07-06. (JPL#K222/5 Soln.date: 2023-May-04
- Mobberley, Martin. Hunting and Imaging Comets. Google Books
