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2011 QF99
is a minor planet from the outer Solar System and the first known Uranus trojan to be discovered. It measures approximately in diameter, assuming an albedo of 0.05. It was first observed 29 August 2011 during a deep survey of trans-Neptunian objects conducted with the Canada–France–Hawaii Telescope, but its identification as Uranian trojan was not announced until 2013. temporarily orbits near Uranus's Lagrangian point (leading Uranus). It will continue to librate around for at least 70,000 years and will remain a Uranus co-orbital for up to three million years. is thus a temporary Uranus trojan—a centaur captured some time ago. Uranus trojans are generally expected to be unstable and none of them are thought to be of primordial origin. A simulation led to the conclusion that at any given time, 0.4% of the centaurs in the scattered population within 34 AU would be Uranus co-orbitals, of which 64% (0.256% of all centaurs) would be in horseshoe orbits, 10% (0.04%) w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mike Alexandersen
This is a list of minor-planet discoverers credited by the Minor Planet Center with the discovery of one or several minor planets (such as near-Earth object, near-Earth and main-belt asteroids, Jupiter trojans and Distant minor planet, distant objects). , the discovery of List of minor planets#Diagram-breakup-into-populations, 612,011 numbered minor planets are credited to 1,141 astronomers and 253 observatories, telescopes or Astronomical survey, surveys ''(see )''. On how a discovery is made, ''see observations of small Solar System bodies. For a description of the tables below, see ''. Discovering astronomers Discovering dedicated institutions Discovering sites Notes The discovery table consist of the following fields: * Astronomers and Institutions: links to the corresponding article about the discovering astronomer or institution on Wikipedia. If not linked, the displayed name should be a redirect to this list. For example, the page forwards to the anch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |