4P/Faye
 Faye's Comet as imaged by Luciano Tinelli on 15 November 2021 | |
| Discovery | |
|---|---|
| Discovered by | Hervé Faye |
| Discovery site | Royal Observatory, France |
| Discovery date | 23 November 1843 |
| Designations | |
| P/1843 W1, P/1850 W1 | |
| |
| Orbital characteristics[2][3] | |
| Epoch | 25 February 2023 (JD 2460000.5) |
| Observation arc | 164.58 years |
| Number of observations | 7,603 |
| Aphelion | 6.034 AU |
| Perihelion | 1.619 AU |
| Semi-major axis | 3.827 AU |
| Eccentricity | 0.57683 |
| Orbital period | 7.48 years |
| Inclination | 8.009° |
| 192.92° | |
| Argument of periapsis | 207.05° |
| Mean anomaly | 70.317° |
| Last perihelion | 8 September 2021 |
| Next perihelion | 9 March 2029[1] |
| TJupiter | 2.742 |
| Earth MOID | 0.589 AU |
| Jupiter MOID | 0.066 AU |
| Physical characteristics[2] | |
Mean radius | 1.77 km (1.10 mi)[4] |
| Comet total magnitude (M1) | 11.0 |
| Comet nuclear magnitude (M2) | 13.2 |
| Perihelion distance at different epochs[5] | |||||||
| Epoch | Perihelion (AU) | ||||||
|---|---|---|---|---|---|---|---|
| 1806 | 1.74 | ||||||
| 1843 | 1.69 | ||||||
| 1984 | 1.59 | ||||||
| 2102 | 1.51 | ||||||
4P/Faye (also known as Faye's Comet or Comet Faye) is a Jupiter-family comet discovered in November 1843 by Hervé Faye at the Royal Observatory in Paris. Its most recent perihelion occurred on 8 September 2021.[3]
Observational history
[edit]The comet was first observed by Faye on November 23, but bad weather prevented its confirmation until the 25th.[6] It was so faint that it had already passed perihelion about a month before its discovery, and only a close pass by the Earth had made it bright enough for discovery. Otto Wilhelm von Struve reported that the comet was visible to the naked eye at the end of November.[6] It remained visible for smaller telescopes until January 10, 1844, and was finally lost to larger telescopes on April 10, 1844.[6]
In 1844, Friedrich Wilhelm Argelander[7] and Thomas James Henderson[8] independently computed that the comet was a short-period comet; by May, its period had been calculated to be 7.43 years.[6] Urbain Le Verrier computed the positions for the 1851 apparition, predicting perihelion in April 1851.[6] The comet was found close to its predicted position on November 29, 1850, by James Challis.[6]
The comet was missed during its apparitions in 1903 and 1918 due to unfavorable observing circumstances.[6] It reached a brightness of about 9th magnitude in 2006.[9]
4P/Faye has a close approach to Jupiter every 59.3 years, which is gradually reducing its perihelion and increasing its orbital eccentricity. In the most recent close approach to Jupiter (March 2018), Faye's perihelion changed from about 1.7 AU to about 1.5 AU.[10]
The comet nucleus is estimated to be about 3.54 km (2.20 mi) in diameter.[4]
- Orbit of Comet 4P/Faye
-
References
[edit]- ^ "Horizons Batch for 4P/Faye (90000118) on 2029-Mar-09" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 15 June 2022. Retrieved 15 June 2022. (JPL#K212/32 Soln.date: 2023-Dec-05)
- ^ a b "JPL Small-Body Database Browser: 4P/Faye" (last observation: 2014-01-29 last obs). Jet Propulsion Laboratory. Retrieved 29 October 2014.
- ^ a b "4P/Faye Orbit". Minor Planet Center. Retrieved 16 June 2014.
- ^ a b P. L. Lamy; I. Toth; H. A. Weaver; M. F. A'Hearn; L. Jorda (2009). "Properties of the nuclei and comae of 13 ecliptic comets from Hubble Space Telescope snapshot observations". Astronomy & Astrophysics. 508 (2): 1045–1056. Bibcode:2009A&A...508.1045L. doi:10.1051/0004-6361/200811462. S2CID 125249770.
- ^ Kinoshita, Kazuo (12 June 2015). "4P/Faye past, present and future orbital elements". Comet Orbit. Archived from the original on 20 May 2011. Retrieved 20 July 2023.
- ^ a b c d e f g Kronk, Gary W. (2001–2005). "4P/Faye". Retrieved 25 December 2005. (Cometography Home Page)
- ^ Argelander, Friedrich W.A. (3 January 1844). "Schreiben des Herrn Professors Argelander, Directors der Sternwarte in Bonn, an den Herausgeber". Astronomische Nachrichten. 21 (495): 225–226. Bibcode:1844AN.....21..225A. doi:10.1002/asna.18440211502.
- ^ Henderson, Thomas J. (10 January 1844). "On the Orbit of the Comet of Faye". Monthly Notices of the Royal Astronomical Society. 6 (3): 18–20. doi:10.1093/mnras/6.3.18b.
- ^ Seiichi Yoshida (12 October 2008). "4P/Faye (2006)". Seiichi Yoshida's Comet Catalog. Archived from the original on 13 October 2007. Retrieved 24 September 2007.
- ^ "Comet of the month – 4P/Faye | British Astronomical Association".
External links
[edit]
- 4P/Faye at the JPL Small-Body Database
- 4P/Faye at CometBase database
- 4P/Faye – Seiichi Yoshida @ aerith.net
- 4P/Faye history from Gary W. Kronk's Cometography
- 4P/Faye at the Minor Planet Center's Database
.png?lang=en)
| National | |
|---|---|
| Other | |
 | This comet-related article is a stub. You can help Wikipedia by expanding it. |