Astronomy:5370 Taranis
| Discovery [1] | |
|---|---|
| Discovered by | A. Maury |
| Discovery site | Palomar Obs. |
| Discovery date | 2 September 1986 |
| Designations | |
| (5370) Taranis | |
| Named after | Taranis [2] (Celtic mythology) |
| 1986 RA | |
| Minor planet category | NEO · Amor [1][2] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 29.93 yr (10,932 d) |
| |{{{apsis}}}|helion}} | 5.4438 AU |
| |{{{apsis}}}|helion}} | 1.2118 AU |
| 3.3278 AU | |
| Eccentricity | 0.6359 |
| Orbital period | 6.07 yr (2,217 days) |
| Mean anomaly | 27.914° |
| Mean motion | 0° 9m 44.64s / day |
| Inclination | 19.131° |
| Longitude of ascending node | 177.85° |
| 161.27° | |
| Earth MOID | 0.2196 AU · 85.6 LD |
| Jupiter MOID | 0.3673 AU |
| Physical characteristics | |
| Dimensions | 2.30 km (derived)[3] 3.6 km (Gehrels)[1] 5.308±0.082 km[4][5] 6.3±0.05 km[5][6] |
| Geometric albedo | 0.037±0.009[5][6] 0.051±0.009[4][5] 0.20 (assumed)[3] |
| S (assumed)[3] | |
| Absolute magnitude (H) | 15.2[1][4] · 15.56[3][7] |
5370 Taranis, provisional designation 1986 RA, is an asteroid and suspected dormant comet on an eccentric orbit, classified as near-Earth object of the Amor group, approximately 5 kilometers in diameter.
Description
Taranis was discovered on 2 September 1986, by French astronomer Alain Maury at the Palomar Observatory in California, United States.[2] It is one of very few asteroids located in the 2:1 mean-motion resonance with Jupiter.[8] When at aphelion of 5.4 AU,[1] the object is roughly the same distance from the Sun as Jupiter is when Jupiter is at aphelion. The unstable resonance with Jupiter is expected to last roughly 7.3 million years.[8]
Taranis also is expected of being a dormant comet.[5] On 10 September 2099 it will pass 0.1325 astronomical unit|AU (19,820,000 km; 12,320,000 mi) from Earth.[1]
This minor planet was named after the Gaulish god of thunder Taranis from Celtic mythology. The official naming citation was published by the Minor Planet Center on 1 September 1993 (M.P.C. 22509).[9]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "JPL Small-Body Database Browser: 5370 Taranis (1986 RA)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=5370;cad=1.
- ↑ 2.0 2.1 2.2 "5370 Taranis (1986 RA)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=5370.
- ↑ 3.0 3.1 3.2 3.3 "LCDB Data for (5370) Taranis". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=5370%7CTaranis.
- ↑ 4.0 4.1 4.2 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D. et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M.
- ↑ 5.0 5.1 5.2 5.3 5.4 Mommert, M.; Harris, A. W.; Mueller, M.; Hora, J. L.; Trilling, D. E.; Bottke, W. F. et al. (October 2015). "ExploreNEOs. VIII. Dormant Short-period Comets in the Near-Earth Asteroid Population". The Astronomical Journal 150 (4): 9. doi:10.1088/0004-6256/150/4/106. Bibcode: 2015AJ....150..106M.
- ↑ 6.0 6.1 Mainzer, A.; Grav, T.; Bauer, J.; Masiero, J.; McMillan, R. S.; Cutri, R. M. et al. (December 2011). "NEOWISE Observations of Near-Earth Objects: Preliminary Results". The Astrophysical Journal 743 (2): 17. doi:10.1088/0004-637X/743/2/156. Bibcode: 2011ApJ...743..156M.
- ↑ Wisniewski, W. Z. (June 1987). "Photometry of six radar target asteroids". Icarus 70 (3): 566–572. doi:10.1016/0019-1035(87)90096-0. ISSN 0019-1035. Bibcode: 1987Icar...70..566W.
- ↑ 8.0 8.1 Roig, F.; Nesvorný, D.; Ferraz-Mello, S. (September 2002). "Asteroids in the 2 : 1 resonance with Jupiter: dynamics and size distribution [ Erratum: 2002MNRAS.336.1391R "]. Monthly Notices of the Royal Astronomical Society 335 (2): 417–431. doi:10.1046/j.1365-8711.2002.05635.x. Bibcode: 2002MNRAS.335..417R. https://academic.oup.com/mnras/article/335/2/417/1046170. Retrieved 2 February 2018.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
External links
- (5370) Taranis at AstDyS-2
- Asteroid Lightcurve Database (LCDB), query form (info )
- Dictionary of Minor Planet Names, Google books
- 5370 Taranis at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 5370 Taranis at ESA–space situational awareness
- 5370 Taranis at the JPL Small-Body Database
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