60558 Echeclus/ˈɛkɪkləs/ is a centaur, approximately 84 kilometers (52 miles) in diameter, located in the outer Solar System. It was discovered by Spacewatch in 2000 and initially classified as a minor planet with provisional designation 2000 EC98 (also written 2000 EC98). Research in 2001 by Rousselot and Petit at the Besançon observatory in France indicated that it was not a comet, but in December 2005 a cometary coma was detected. In early 2006[6] the Committee on Small Bodies Nomenclature (CSBN) gave it the cometary designation 174P/Echeclus. It last came to perihelion in April 2015,[1] and was expected to reach about apparent magnitude 16.7 near opposition in September 2015.[7]
^Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 16 December 2006. Retrieved 2006-12-26.
^ ab
John Stansberry; Will Grundy; Mike Brown; Dale Cruikshank; John Spencer; David Trilling; Jean-Luc Margot (2007). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope". arXiv:astro-ph/0702538.
^ abCite error: The named reference Hainaut-2012 was invoked but never defined (see the help page).
^"AstDys (60558) Echeclus Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2010-06-28.
^"Homepage of the VdS-Fachgruppe Kometen". Archived from the original on 24 April 2006. Retrieved 2006-04-18.
^Cite error: The named reference MPC-eph was invoked but never defined (see the help page).
60558Echeclus /ˈɛkɪkləs/ is a centaur, approximately 84 kilometers (52 miles) in diameter, located in the outer Solar System. It was discovered by Spacewatch...
possible cometary behavior. 60558Echeclus has displayed a cometary coma and now also has the cometary designation 174P/Echeclus. After passing perihelion...
and 60558 Echeclus was discovered without a coma but later became active, and was then classified as both a comet and an asteroid (174P/Echeclus). One plan...
P. (April 2007). "Search for cometary activity in three Centaurs (60558) Echeclus, 2000 FZ53 and 2000 GM137 and two trans-Neptunian objects [(29981)...
For example, 60558Echeclus has previously displayed a cometary coma and thus also has been given the cometary designation 174P/Echeclus. After passing...
1996 as a comet, but orbitally matched to asteroid 1979 OW7 60558Echeclus 174P/Echeclus Centaur discovered in 2000, comet designation assigned in 2006...
moon of (225088) Gonggong Dike 99 33.677±0.208 belt asteroid type C Echeclus60558 or 174P 32.3±0.8 centaur Desdemona Uranus X 32±4 moon of Uranus Eurybates...