Discovery | |
---|---|
Discovered by | Scott S. Sheppard, Chad Trujillo |
Discovery date | 8 October 2005 |
Designations | |
2005 TN74 | |
3:5 resonant TNO | |
Orbital characteristics [1] | |
Epoch 13 January 2016 ( JD 2457400.5) | |
Uncertainty parameter 4 | |
Observation arc | 1805 days (4.94 yr) |
Aphelion | 52.49343 AU (7.852905 Tm) |
Perihelion | 32.11131 AU (4.803784 Tm) |
42.30237 AU (6.328344 Tm) | |
Eccentricity | 0.24091 |
275.14 yr (100495 d) | |
351.03607 ° | |
0° 0m 12.896s /day | |
Inclination | 2.17385° |
179.25692° | |
224.79728° | |
Earth MOID | 31.1197 AU (4.65544 Tm) |
Jupiter MOID | 27.1241 AU (4.05771 Tm) |
Physical characteristics | |
Dimensions | 85–240 km |
7.3 [1] | |
(613100) 2005 TN74 ( provisional designation 2005 TN74) is a trans-Neptunian object (TNO) [2] in a 3:5 resonance with Neptune. [3] [4] It was discovered by Scott S. Sheppard and Chadwick A. Trujillo in 2005.
It was initially suspected of being a Neptune trojan since the first observations gave it a semi-major axis of 30 AU and an orbital eccentricity of 0.16, [5] but further observations showed it to have a semi-major axis of 42.7 AU, a perihelion of 32.1 AU, and an aphelion of 53.4 AU. [1]
With an absolute magnitude of 7.2, [1] it has an expected diameter in the range of 85 to 240 km. [6]
It has been observed 19 times over four oppositions. [1]
Discovery | |
---|---|
Discovered by | Scott S. Sheppard, Chad Trujillo |
Discovery date | 8 October 2005 |
Designations | |
2005 TN74 | |
3:5 resonant TNO | |
Orbital characteristics [1] | |
Epoch 13 January 2016 ( JD 2457400.5) | |
Uncertainty parameter 4 | |
Observation arc | 1805 days (4.94 yr) |
Aphelion | 52.49343 AU (7.852905 Tm) |
Perihelion | 32.11131 AU (4.803784 Tm) |
42.30237 AU (6.328344 Tm) | |
Eccentricity | 0.24091 |
275.14 yr (100495 d) | |
351.03607 ° | |
0° 0m 12.896s /day | |
Inclination | 2.17385° |
179.25692° | |
224.79728° | |
Earth MOID | 31.1197 AU (4.65544 Tm) |
Jupiter MOID | 27.1241 AU (4.05771 Tm) |
Physical characteristics | |
Dimensions | 85–240 km |
7.3 [1] | |
(613100) 2005 TN74 ( provisional designation 2005 TN74) is a trans-Neptunian object (TNO) [2] in a 3:5 resonance with Neptune. [3] [4] It was discovered by Scott S. Sheppard and Chadwick A. Trujillo in 2005.
It was initially suspected of being a Neptune trojan since the first observations gave it a semi-major axis of 30 AU and an orbital eccentricity of 0.16, [5] but further observations showed it to have a semi-major axis of 42.7 AU, a perihelion of 32.1 AU, and an aphelion of 53.4 AU. [1]
With an absolute magnitude of 7.2, [1] it has an expected diameter in the range of 85 to 240 km. [6]
It has been observed 19 times over four oppositions. [1]