10P/Tempel
10P/Tempel, also known as Tempel 2, is a periodic Jupiter-family comet in the Solar System. It was discovered in 1873 and has an orbital period of 5.3 years.[2]
| Discovery | |
|---|---|
| Discovered by | Ernst Wilhelm Leberecht Tempel |
| Discovery date | July 4, 1873 |
| Alternative designations | 1873 II; 1878 III; 1894 III; 1899 IV; 1904 III; 1915 I; 1920 II; 1925 IV; 1930 VII; 1946 III; 1951 VIII; 1957 II; 1962 VI; 1967 X; 1972 X; 1978 V; 1983 X; 1988 XIV; 1994 VII; |
| Orbital characteristics A | |
| Epoch | December 4, 2015 (JD 2457360.5) |
| Aphelion | 4.711 AU |
| Perihelion | 1.4176 AU |
| Semi-major axis | 3.064 AU |
| Eccentricity | 0.53736 |
| Orbital period | 5.36 yr |
| Inclination | 12.028° |
| Earth MOID | 0.41 AU (61 million km) |
| Dimensions | 10.6 km[1] |
| Last perihelion | 14 November 2015[2][3] 4 July 2010[4][5] |
| Next perihelion | 2021-Mar-24[6] |
The comet nucleus is estimated to be 10.6 kilometers in diameter with a low albedo of 0.022.[1] The nucleus is dark because hydrocarbons on the surface have been converted to a dark, tar like substance by solar ultraviolet radiation.
During the 2010 apparition the comet brightened to about apparent magnitude 8.[4] It next comes to perihelion (closest approach to the Sun) on 14 November 2015 when it should brighten to around magnitude 11.[4]
The most favorable apparition of 10P/Tempel 2 was in 1925 when it came within 0.35 AU (52,000,000 km; 33,000,000 mi) of Earth with an apparent magnitude of 6.5.[7] On August 3, 2026, comet Tempel 2 is expected to have another close pass within about 0.41 AU of Earth.[8]
References
- "JPL Small-Body Database Browser: 10P/Tempel 2" (last observation: 2014-03-29; arc: 67.91 years). Jet Propulsion Laboratory. Retrieved 2010-02-24.
- "10P/Tempel Orbit". Minor Planet Center. Retrieved 2014-11-06.
- 10P at Kazuo Kinoshita home page
- Seiichi Yoshida (2008-01-27). "10P/Tempel 2". Seiichi Yoshida's Comet Catalog. Retrieved 2010-02-24.
- Syuichi Nakano (2007-04-10). "10P/Tempel 2 (NK 1460)". OAA Computing and Minor Planet Sections. Retrieved 2010-02-24.
- Horizons output. "Observer Table for 10P/Tempel". Retrieved 2011-07-24. (Observer Location:@sun)
- Kronk, Gary W. "10P/Tempel 2". Archived from the original on 22 February 2010. Retrieved 2010-02-24. (Cometography Home Page)
- "JPL Close-Approach Data: 10P/Tempel 2" (last observation: 2014-03-29; arc: 67.91 years). Retrieved 2010-02-24.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- Elements and Ephemeris for 10P/Tempel – Minor Planet Center
- 10P/Tempel 2 / 2010 – Seiichi Yoshida @ aerith.net
- 10P/Tempel 2 (2010) (astrosurf)
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| Numbered comets | ||
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| Previous 9P/Tempel |
10P/Tempel | Next 11P/Tempel–Swift–LINEAR |
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