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About: 2005 HC4     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingplacedbo:Locationschema:Placecelestial bodyPlanetyago:WikicatApolloAsteroidsyago:WikicatAstronomicalObjectsDiscoveredIn2005yago:WikicatMars-crossingAsteroidsyago:WikicatMercury-crossingAsteroidsyago:WikicatVenus-crosserAsteroidsyago:Asteroid109208702yago:CelestialBody109239740yago:MinorPlanet109355623yago:NaturalObject100019128yago:Object100002684yago:PhysicalEntity100001930yago:Planet109394007planetyago:Whole100003553 New Facet based on Instances of this Class

2005 HC4 is the asteroid with the smallest known perihelion of any known object orbiting the Sun (except sungrazing comets). Its extreme orbital eccentricity brings it to within 0.071 AU of the Sun (23% of Mercury's perihelion) and takes it as far as 3.562 AU from the Sun (well beyond the orbit of Mars). Due to its very small perihelion and comparably large aphelion, 2005 HC4 achieves the fastest speed of any known asteroid bound to the Solar System with a velocity of 157 km/s (565,000 km/h; 351,000 mi/h) at perihelion (there are comets, however, which obtain much higher speeds).