6P/d'Arrest
| Discovery | |
|---|---|
| Discovered by | Heinrich Louis d'Arrest |
| Discovery date | June 28, 1851 |
| Alternative designations |
1678 R1, 1851 M1, 1857 X1, 1923b, 1950a, 1963f, 1970d, 1976e, 1982e, 1987k |
| Orbital characteristics A | |
| Epoch |
2009-Jan-10 (JD 2454841.5) |
| Aphelion | 5.637 AU |
| Perihelion | 1.353 AU |
| Semi-major axis | 3.495 AU |
| Eccentricity | 0.6127 |
| Orbital period | 6.54 a |
| Inclination | 19.51° |
| TJupiter | 2.71 |
| Dimensions | 3.2 km[1] |
| Last perihelion | August 14, 2008 |
| Next perihelion | March 2, 2015[2] |
6P/d'Arrest (also known as d'Arrest's Comet or Comet d'Arrest) is a periodic Jupiter-family comet in the Solar System, orbiting between Mars and Jupiter. It passed 0.15124 AU (22,625,000 km; 14,059,000 mi) from the Earth on August 12, 1976.[3]
The comet last came to perihelion (closest approach to the Sun) on March 2, 2015,[4] but it was in an unfavorable apparition as it had a solar elongation of less than 30 degrees from October 2014 until May 2015.[5]
In 1991, Andrea Carusi and Giovanni B. Valsecchi (Istituto Astrofisica Spaziale, Rome), and Ľubor Kresák and Margita Kresáková (Slovak Astronomical Institute, Bratislava) independently suggested this comet was the same as a comet observed by Philippe de La Hire in 1678.[6][7]
It was first observed by Heinrich Ludwig d'Arrest, in Leipzig, Germany, on 28th and 30th of June 1851.[6]
The comet nucleus is estimated at about 3.2 km in diameter.[1]
References
- 1 2 "JPL Small-Body Database Browser: 6P/d'Arrest" (last observation: 2014-03-10). Jet Propulsion Laboratory. Retrieved February 25, 2010.
- ↑ Syuichi Nakano (May 28, 2008). "6P/d'Arrest (NK 1625)". OAA Computing and Minor Planet Sections. Retrieved February 18, 2012.
- ↑ "JPL Close-Approach Data: 6P/d'Arrest" (last observation: 2014-03-10). Retrieved February 22, 2012.
- ↑ Seiichi Yoshida (2014-03-16). "6P/d'Arrest". Seiichi Yoshida's Comet Catalog. Retrieved 2014-10-29.
- ↑ "Elements and Ephemeris for 6P/d'Arrest". Minor Planet Center. Retrieved 2014-10-29. (0006P)
- 1 2 Kronk, Gary W. (2001–2005). "6P/d'Arrest". Archived from the original on June 22, 2006. Retrieved June 7, 2006. (Cometography Home Page)
- ↑ Carusi, A.; Valsecchi, G. B.; Kresák, Ľ.; Kresáková, M.; and Sitarski, G., Periodic Comet d'Arrest = Comet la Hire (1678), IAU Circular 5283, 1 (1990)
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 6P/d'Arrest at CometBase database
- Elements and Ephemeris for 6P/d'Arrest – Minor Planet Center
- 6P/d'Arrest – Seiichi Yoshida @ aerith.net
- 6P – Gary W. Kronk's Cometography
| Periodic comets (by number) | ||
|---|---|---|
| Previous 5D/Brorsen |
6P/d'Arrest | Next 7P/Pons–Winnecke |