Discovery [1] [2] | |
---|---|
Discovered by | Sloan Digital Sky Srvy. |
Discovery site | Apache Point Obs. |
Discovery date | 12 September 2006 |
Designations | |
2006 RJ103 | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 3 | |
Observation arc | 14.15 yr (5,169 days) |
Aphelion | 30.862 AU |
Perihelion | 28.988 AU |
29.925 AU | |
Eccentricity | 0.0313 |
163.70 yr (59,793 days) | |
251.55° | |
0° 0m 21.6s / day | |
Inclination | 8.1641° |
120.86° | |
33.563° | |
Physical characteristics | |
Dimensions | |
22.0 [5] | |
7.5 [1] | |
(613490) 2006 RJ103 is a Neptune trojan, first observed by the Sloan Digital Sky Survey Collaboration at Apache Point Observatory, New Mexico, on 12 September 2006. [2] It was the fifth and largest such body discovered, approximately 180 kilometers in diameter. As of 2016 [update] , it is 30.3 AU from Neptune.
Neptune trojans are resonant trans-Neptunian objects in a 1:1 mean-motion orbital resonance with Neptune. These trojans have a semi-major axis and an orbital period very similar to Neptune's (30.10 AU; 164.8 years).
2006 RJ103 belongs to the leading L4 group, which follow 60° ahead Neptune's orbit. It orbits the Sun with a semi-major axis 29.925 AU of at a distance of 29.0–30.9 AU once every 163 years and 8 months (59,793 days). Its orbit has an eccentricity of 0.03 and an inclination of 8° with respect to the ecliptic. [1]
The discoverers estimate that 2006 RJ103 has a mean-diameter of 180 kilometers based on a magnitude of 22.0. [5] Based on a generic magnitude-to-diameter conversion, it measures approximately 130 kilometers in diameter using an absolute magnitude of 7.5 with an assumed albedo of 0.10. [4]
Due to its orbital uncertainty, this minor planet has not been numbered and its official discoverers have not been determined. [1] [2] If named, it will follow the naming scheme already established with 385571 Otrera, which is to name these objects after figures related to the Amazons, an all-female warrior tribe that fought in the Trojan War on the side of the Trojans against the Greek. [6]
(612243) 2001 QR322, prov. designation: 2001 QR322, is a minor planet and the first Neptune trojan discovered, by American astronomer Marc Buie of the Deep Ecliptic Survey at Cerro Tololo Observatory in Chile on 21 August 2001. It orbits ahead of Neptune at its L4 Lagrangian point and measures approximately 132 kilometers (82 miles) in diameter.
385571 Otrera, provisional designation 2004 UP10, is a Neptune trojan leading Neptune's orbit in the outer Solar System. It was discovered by American astronomers Scott Sheppard and Chad Trujillo at Las Campanas Observatory on 16 October 2004. It measures approximately 100 kilometers in diameter and was the second such body to be discovered after 2001 QR322.
2005 TN53 is an inclined Neptune trojan leading Neptune's orbit in the outer Solar System, approximately 80 kilometers in diameter. It was first observed on 7 October 2005, by American astronomers Scott Sheppard and Chad Trujillo at Las Campanas Observatory in the Atacama desert of Chile. It was the third such body to be discovered, and the first with a significant orbital inclination, which showed that the population as a whole is very dynamically excited.
385695 Clete, provisional designation 2005 TO74, is a Neptune trojan, co-orbital with the ice giant Neptune, approximately 97 kilometers (60 miles) in diameter. It was named after Clete, one of the Amazons from Greek mythology. The minor planet was discovered on 8 October 2005, by American astronomers Scott Sheppard and Chad Trujillo at Las Campanas Observatory in Chile. 23 known Neptune trojans have already been discovered.
(527604) 2007 VL305, provisional designation 2007 VL305, is an inclined Neptune trojan that shares Neptune's orbit in the L4 Lagrangian point. It was discovered on 4 November 2007, by astronomers Andrew Becker, Andrew Puckett and Jeremy Kubica at the Apache Point Observatory in New Mexico, United States, although images from 2005 have also been recovered. It measures approximately 160 kilometers in diameter and was the sixth Neptune trojan to be discovered. As of 2016, it is 34.1 AU from Neptune.
(612584) 2003 QX113 is a large trans-Neptunian object from the scattered disc located in the outermost region of the Solar System. It is one of the most distant objects from the Sun at 60.5 AU. It was discovered by astronomers with the Canada–France Ecliptic Plane Survey at Mauna Kea Observatories, Hawaii, when it was near aphelion on 31 August 2003. It was provisionally designated 2003 QX113.
5119 Imbrius, provisional designation:1988 RA1, is a Jupiter trojan from the Trojan camp, approximately 49 kilometers (30 mi) in diameter. It was discovered on 8 September 1988 by Danish astronomer Poul Jensen at the Brorfelde Observatory near Holbæk, Denmark. The dark Jovian asteroid has a rotation period of 12.8 hours. It was numbered in March 1992, and named from Greek mythology after Imbrius, who was killed by Greek archer Teucer during the Trojan War.
5476 Mulius, provisional designation:1989 TO11 is a mid-sized Jupiter trojan from the Trojan camp, approximately 35 kilometers (22 miles) in diameter. It was discovered on 2 October 1989, by American astronomer Schelte Bus at the Cerro Tololo Inter-American Observatory in Chile. The dark Jovian asteroid has a rotation period of 5.8 hours. It was numbered in March 1993. In November 2021, it was named after the Trojan warrior Mulius, who was killed by Achilles during the Trojan War, according to Greek mythology.
6002 Eetion, provisional designation: 1988 RO, is a mid-sized Jupiter trojan from the Trojan camp, approximately 40 kilometers in diameter. It was discovered by Poul Jensen at the Brorfelde Observatory in 1988, and has not been named since its numbering in June 1994. The dark Jovian asteroid has a rotation period of 12.9 hours. In 2021, it was named from Greek mythology after King Eetion, who was killed by Achilles during the raid on Thebe.
6090 Aulis, provisional designation: 1989 DJ, is a Jupiter trojan from the Greek camp, approximately 70 kilometers in diameter. It was discovered on 27 February 1989, by Belgian astronomer Henri Debehogne at ESO's La Silla Observatory in northern Chile. The dark Jovian asteroid belongs to the 50 largest Jupiter trojans and has a rotation period of 18.5 hours. It was named for the ancient Greek port Aulis, mentioned in the Iliad.
2008 LC18 is a Neptune trojan first observed on 7 June 2008 by American astronomers Scott Sheppard and Chad Trujillo using the Subaru Telescope at Mauna Kea Observatories on Hawaii, United States. It was the first object found in Neptune's trailing L5 Lagrangian point and measures approximately 100 kilometers in diameter.
2004 KV18 is an eccentric Neptune trojan trailing Neptune's orbit in the outer Solar System, approximately 70 kilometers in diameter. It was first observed on 24 May 2004, by astronomers at the Mauna Kea Observatories on Hawaii, United States. It was the eighth Neptune trojan identified and the second in Neptune's L5 Lagrangian point.
7352 Hypsenor, provisional designation:1994 CO, is a larger Jupiter trojan from the Trojan camp, approximately 48 kilometers in diameter. The tumbling Jovian asteroid is a slow rotator with an exceptionally long rotation period of 648 hours. It was discovered on 4 February 1994 by Japanese astronomers Seiji Ueda and Hiroshi Kaneda at the Kushiro Observatory on Hokkaidō, Japan. It was numbered in December 1996, and named after the Trojan warrior Hypsenor from Greek mythology in November 2021.
(589683) 2010 RF43 (provisional designation 2010 RF43) is a large trans-Neptunian object orbiting in the scattered disc in the outermost regions of the Solar System. The object was discovered on 9 September 2010, by American astronomers David Rabinowitz, Megan Schwamb and Suzanne Tourtellotte at ESO's La Silla Observatory in northern Chile.
2011 HM102 is the ninth Neptune trojan discovered. It was first observed on 29 April 2011, during the New Horizons KBO Search (268) using the Magellan II (Clay) Telescope at Las Campanas Observatory in Chile. It has the same orbital period as Neptune and orbits at the L5 Lagrangian point about 60° backwards of Neptune.
(127546) 2002 XU93, provisional designation 2002 XU93, is a trans-Neptunian object and centaur on highly inclined and eccentric orbit in the outer region of the Solar System. It measures approximately 170 kilometers (110 mi) in diameter and is one of few objects with such an unusual orbit. It was discovered on 4 December 2002, by American astronomer Marc Buie at the Kitt Peak National Observatory in Arizona, United States.
(543354) 2014 AN55 (provisional designation 2014 AN55) is a trans-Neptunian object in the scattered disc, located in the outermost region of the Solar System, that measures approximately 600 kilometres (370 mi) in diameter. It was discovered on 25 January 2014, by astronomers with the Pan-STARRS survey at Haleakala Observatory on the island of Maui, Hawaii, in the United States.
34746 Thoon (provisional designation 2001 QE91) is a dark Jupiter trojan from the Trojan camp, approximately 60 kilometers (37 miles) in diameter. It was discovered on 22 August 2001, by astronomers with the Lincoln Near-Earth Asteroid Research at Lincoln Lab's ETS in Socorro, New Mexico. The possibly elongated Jovian asteroid is one of the 70 largest Jupiter trojans and has a rotation period of 19.6 hours. It was named after the Trojan warrior Thoön from Greek mythology.
38050 Bias (provisional designation 1998 VR38) is a Jupiter trojan from the Greek camp, approximately 61 kilometers (38 miles) in diameter. It was discovered on 10 November 1998, by astronomers with the Lincoln Near-Earth Asteroid Research at Lincoln Lab's ETS in Socorro, New Mexico. The dark Jovian asteroid is one of the 70 largest Jupiter trojans and has a rotation period of 18.9 hours. It was named after the Athenian warrior Bias from Greek mythology.
2014 SV349 is a large trans-Neptunian object from the scattered disc located in the outermost region of the Solar System. It is one of the most distant objects from the Sun at 60.5 AU. The object is a dwarf planet candidate and measures approximately 423 kilometers (260 miles) in diameter. It was discovered on 19 September 2014, by American astronomer Scott Sheppard at the Cerro Tololo Observatory, Chile, and was provisionally designated 2014 SV349.