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(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.
Neptune trojans are bodies that orbit the Sun near one of the stable Lagrangian points of Neptune, similar to the trojans of other planets. They therefore have approximately the same orbital period as Neptune and follow roughly the same orbital path. Thirty-one Neptune trojans are currently known, of which 27 orbit near the Sun–Neptune L4 Lagrangian point 60° ahead of Neptune and four orbit near Neptune's L5 region 60° behind Neptune. The Neptune trojans are termed 'trojans' by analogy with the Jupiter trojans.
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.
(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. It was the fifth and largest such body discovered, approximately 180 kilometers in diameter. As of 2016, it is 30.3 AU from Neptune.
3391 Sinon is a mid-sized Jupiter trojan from the Greek camp, approximately 40 kilometers in diameter. It was discovered on 18 February 1977, by Japanese astronomers Hiroki Kosai and Kiichirō Furukawa at the Kiso Observatory in Japan. The dark Jovian asteroid has a rotation period of 8.1 hours and likely an elongated shape. It was named after the hero Sinon from Greek mythology.
5126 Achaemenides is a Jupiter trojan from the Greek camp, approximately 50 kilometers in diameter. It was discovered on 1 February 1989, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California. The dark Jovian asteroid belongs the 100 largest Jupiter trojans and has a long rotation period of 32.4 hours. It was named after one of Odysseus's crew members, Achaemenides, from Greek mythology.
5652 Amphimachus is a Jupiter trojan from the Greek camp, approximately 53 kilometers in diameter. It was discovered on 24 April 1992, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The dark Jovian asteroid belongs to the 80 largest Jupiter trojans and has a rotation period of 8.4 hours. It was named from Greek mythology after Amphimachus, who was slain by Hector.
12052 Aretaon is a mid-sized Jupiter trojan from the Trojan camp, approximately 40 kilometers in diameter. It was discovered on 3 May 1997, by Belgian astronomer Eric Elst at ESO's La Silla Observatory in northern Chile. The dark Jovian asteroid has a rotation period of 8.05 hours. It was named after Aretaon from Greek mythology.
11429 Demodokus is a mid-sized Jupiter trojan from the Greek camp, approximately 38 kilometers in diameter. It was discovered during the Palomar–Leiden survey at the Palomar Observatory in 1960 and later named after the blind singer Demodocus from Greek mythology. The dark Jovian asteroid has a longer-than average rotation period of 50.2 hours.
'4501 Eurypylos is a Jupiter trojan from the Greek camp, approximately 46 kilometers in diameter. It was discovered on 4 February 1989 by Belgian astronomer Eric Elst at ESO's La Silla Observatory in Chile. The dark Jovian asteroid has a short rotation period of 6.1 hours. It was named after the Thessalian king Eurypylus from Greek mythology.
7119 Hiera is a large Jupiter trojan and potentially slow rotator from the Greek camp, approximately 70 kilometers in diameter. It was discovered on 11 January 1989, by American astronomer couple Carolyn and Eugene Shoemaker at Palomar Observatory in California. The dark Jovian asteroid belongs to the 60 largest Jupiter trojans and has an estimated rotation period of at least 400 hours. It was named for the Amazon Hiera, who fought against the Greeks in the Trojan War. As with 624 Hektor, the naming for this Jovian asteroid was placed into the wrong camp.
9142 Rhesus is a larger Jupiter trojan from the Trojan camp, approximately 42 kilometers in diameter. It was discovered during the third Palomar–Leiden Trojan survey in 1977, and later named after King Rhesus from Greek mythology. The dark D-type asteroid has a rotation period of 7.3 hours.
3794 Sthenelos is a mid-sized Jupiter trojan from the Greek camp, approximately 40 kilometers in diameter. It was discovered on 12 October 1985, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California. The presumed C-type asteroid has a rotation period of 12.9 hours. It was named after the Greek warrior Sthenelus from Greek mythology.
11252 Laërtes ( lay-UR-teez; provisional designation 1973 SA2) is a mid-sized Jupiter trojan from the Greek camp, approximately 41 kilometers (25 miles) in diameter. It was discovered during a follow-up campaign of the Palomar–Leiden survey in 1973, and named after the King Laërtes from Greek mythology. The dark Jovian asteroid has a rotation period of 9.2 hours.
(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.
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.
(316179) 2010 EN65 is a trans-Neptunian object orbiting the Sun. However, with a semi-major axis of 30.8 AU, the object is actually a jumping Neptune trojan, co-orbital with Neptune, as the giant planet has a similar semi-major axis of 30.1 AU. The body is jumping from the Lagrangian point L4 into L5 via L3. As of 2016, it is 54 AU from Neptune. By 2070, it will be 69 AU from Neptune.
23135 Pheidas (provisional designation 2000 AN146) is a large Jupiter trojan from the Greek camp, approximately 66 kilometers (41 miles) in diameter. It was discovered on 7 January 2000, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States. The dark Jovian asteroid belongs to the 50 largest Jupiter trojans and has a rotation period of 8.7 hours. It was named after the Athenian warrior Pheidas from Greek mythology.
References
- 1 2 3 4 5 6 7 "385695 Clete (2005 TO74)". Minor Planet Center. Retrieved 3 June 2019.
- 1 2 "MPEC 2005-U97 : 2005 TN74, 2005 TO74". Minor Planet Electronic Circular–Minor Planet Center. 31 October 2005. Retrieved 3 June 2019.
- 1 2 3 "List Of Neptune Trojans". Minor Planet Center. 23 May 2019. Retrieved 3 June 2019.
- 1 2 3 4 Johnston, Wm. Robert (25 May 2019). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 3 June 2019.
- 1 2 3 4 "JPL Small-Body Database Browser: 385695 Clete (2005 TO74)" (2013-10-06 last obs.). Jet Propulsion Laboratory . Retrieved 3 June 2019.
- 1 2 3 Lakdawalla, Emily (13 August 2010). "2008 LC15, the first Trojan asteroid discovered in Neptune's L5 point". The Planetary Society. Retrieved 4 August 2017.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 June 2019.
- ↑ Ticha, J.; et al. (10 April 2018). "DIVISION F / Working Group for Small Body Nomenclature Working Group for Small Body Nomenclature. THE TRIENNIAL REPORT (2015 Sept 1 - 2018 Feb 15)" (PDF). IAU. p. 2. Retrieved 25 August 2018.
- ↑ Zhou, Li-Yong; Dvorak, Rudolf; Sun, Yi-Sui (January 2011). "The dynamics of Neptune Trojans - II. Eccentric orbits and observed objects". Monthly Notices of the Royal Astronomical Society . 410 (3): 1849–1860. arXiv: 1007.5362 . Bibcode:2011MNRAS.410.1849Z. doi: 10.1111/j.1365-2966.2010.17566.x . S2CID 119238700.
- ↑ "Asteroid Size Estimator". CNEOS/JPL. Retrieved 4 August 2017.
