(385695) 2005 TO74
| Discovery | |
|---|---|
| Discovery date | 8 October 2005[1] |
| Designations | |
| Trojan asteroid | |
| Orbital characteristics[2][3] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 3661 days (10.02 yr) |
| Aphelion | 31.677 AU (4.7388 Tm) |
| Perihelion | 28.441 AU (4.2547 Tm) |
| 30.059 AU (4.4968 Tm) | |
| Eccentricity | 0.053826 |
| 164.81 yr (60195.5 d) | |
| 278.95° | |
| 0° 0m 21.53s / day | |
| Inclination | 5.2607° |
| 169.470° | |
| 307.37° | |
| Earth MOID | 27.4601 AU (4.10797 Tm) |
| Jupiter MOID | 23.1858 AU (3.46855 Tm) |
| Jupiter Tisserand parameter | 4.953 |
| Physical characteristics | |
| Dimensions | ~100 km |
| 8.3[2] | |
|
| |
(385695) 2005 TO74 (also written 2005 TO74) is the fourth Neptune trojan discovered.[4] It orbits near Neptune's L4 Lagrangian point about 60 degrees ahead of Neptune and thus has the about same orbital period as Neptune. The Neptune-resonance should keep it more than 19 AU from Neptune for 14,000 years.[1] As of 2016, it is 25.5 AU from Neptune. 2005 TO74 is located close to the boundary separating stable orbits from unstable ones, and it may be influenced by a secular resonance.[5] It was discovered by Scott S. Sheppard and Chadwick A. Trujillo on 8 October 2005 near apparent magnitude 23.[1]
References
- 1 2 3 MPEC 2005-U97 : 2005 TN74, 2005 TO74
- 1 2 "JPL Small-Body Database Browser: 385695 (2005 TO74)". Retrieved 12 April 2016.
- ↑ AstDys-2 about 2005 TO74
- ↑ List Of Neptune Trojans
- ↑ Zhou, Li-Yong; Dvorak, Rudolf; Sun, Yi-Sui (2011). "The dynamics of Neptune Trojans – II. Eccentric orbits and observed objects". Monthly Notices of the Royal Astronomical Society. 430 (3): 1849–1860. arXiv:1007.5362
. Bibcode:2011MNRAS.410.1849Z. doi:10.1111/j.1365-2966.2010.17566.x.
External links
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