astro.wikisort.org - Comet
51P/Harrington is a periodic comet in the Solar System.
| Discovery | |
|---|---|
| Discovered by | Robert G. Harrington at Palomar Observatory |
| Discovery date | 14 August 1953 |
| Orbital characteristics A | |
| Epoch | 2022-09-18 (JD 2459840.5) |
| Aphelion | 5.724 AU (Q) |
| Perihelion | 1.6925 AU (q) |
| Semi-major axis | 3.708 AU (a) |
| Eccentricity | 0.5436 |
| Orbital period | 7.14 yr |
| Inclination | 5.427° |
| Last perihelion | 12 August 2015[1] 18 June 2008 |
| Next perihelion | 2022-Oct-01 (MPC)[2] 2022-Oct-01 (51P-D)[3] 2022-Oct-03 (JPL)[4] |
It was discovered by Robert George Harrington at Palomar Observatory on 14 August 1953 using the Schmidt telescope. It then had a brightness of magnitude 15. In October 1956 its orbit was affected by the planet Jupiter and on its next return in 1960 the brightness had fallen to magnitude 20. By 1980 it had slightly improved to magnitude 18. It has a period of 7.1 years.
In 1987 and 1994 brightness had significantly increased to magnitude 12. In 1994 Jim Scotti at Kitt Peak Observatory observed that the comet had broken up and that two detached pieces were accompanying the main body, which explained the improvement in the brightness. By 2001 further splitting had occurred.
51P will come to opposition on 23 August 2022 when it will have a solar elongation of 168 degrees and be 0.74 AU from Earth. It will come to perihelion (closest approach to the Sun) on 3 October 2022.[4]
| Fragment | Opposition | Perigee (Earth approach) |
Perihelion (Sun approach) |
|---|---|---|---|
| 51P[5] | 2022-08-23 @ 168.2° | 2022-09-03 @ 0.727 au | 2022-10-03 @ 1.69 au |
| 51P-D[6] | 2022-08-25 @ 167.9° | 2022-09-04 @ 0.720 au | 2022-10-01 @ 1.69 au |
See also
- List of periodic comets
References
- Seiichi Yoshida (2016-05-14). "51P/Harrington". Seiichi Yoshida's Comet Catalog. Retrieved 2017-02-26.
- "51P/Harrington Orbit". Minor Planet Center. Archived from the original on 2022-06-20.
- "Horizons Batch for 51P-D (90000593) on 2022-Oct-01" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2022-06-20. Retrieved 2022-06-20. (JPL#2, Soln.date: 2018-Feb-28)
- "Horizons Batch for 51P/Harrington (90000591) 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/Harrington (90000591) for Aug-Oct 2022". JPL Horizons. Retrieved 2022-06-21. (JPL#K153/2, Soln.date: 2015-Oct-07)
- "Horizons Batch for 51P-D (90000593) for Aug-Oct 2022". JPL Horizons. Retrieved 2022-06-21. (JPL#2, Soln.date: 2018-Feb-28)
- Mobberley, Martin. Hunting and Imaging Comets. Google Books
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 51P/Harrington – Seiichi Yoshida @ aerith.net
- Elements and Ephemeris for 51P/Harrington – Minor Planet Center
- 51P/Harrington at the Minor Planet Center's Database
- 51P/Harrington – Kazuo Kinoshita (2008 Dec. 21)
- 51P/Harrington – Gary W. Kronk's Cometography
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На других языках
- [en] 51P/Harrington
[ru] 51P/Харрингтона
Комета Ха́ррингтона (51P/Harrington) — короткопериодическая комета из семейства Юпитера, которая была открыта 14 августа 1953 года американским астрономом Робертом Харрингтоном в Паломарской обсерватории с помощью 122-см телескопа им. Самуэля Ошина и находилась в момент открытия в созвездии Водолея. Комета была описана как диффузный объект 15 m с центральной конденсацией и хвостом около 1° углового градуса. Комета обладает довольно коротким периодом обращения вокруг Солнца — чуть менее 7,2 года.Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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