Eris (Dwarf Planet)
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High Quality Content by WIKIPEDIA articles! Eris, formal designation 136199 Eris, is the largest known dwarf planet in the Solar System and the ninth-largest body known to orbit the Sun directly. It is approximately 2,500 kilometres in diameter and 27% more massive than Pluto. Eris was first identified in January 2005 by a Palomar Observatory-based team led by Mike Brown, and its identity verified later that year. It is a trans-Neptunian object (TNO) native to a region of space beyond the Kuiper belt known as the scattered disc. Eris has one moon, Dysnomia; recent observations have found no evidence of further satellites. The current distance from the Sun is 96.7 AU, roughly three times that of Pluto. With the exception of some comets the pair are the most distant known natural objects in the Solar System. Because Eris is larger than Pluto, its discoverers and NASA called it the Solar System s tenth planet. This, along with the prospect of other similarly sized objects being discovered in the future, motivated the International Astronomical Union (IAU) to define the term planet for the first time.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786130243326
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Sprache Englisch
- Genre Physik & Astronomie
- Größe H220mm x B150mm x T15mm
- Jahr 2009
- EAN 9786130243326
- Format Kartonierter Einband
- ISBN 978-613-0-24332-6
- Titel Eris (Dwarf Planet)
- Untertitel Minor Planet Designation, Dwarf Planet, Solar System, Sun, Mass, Michael E. Brown, Pluto, Trans-Neptunian Object, Kuiper Belt, Scattered Disc, Natural Satellite, Dysnomia (Moon)
- Gewicht 398g
- Herausgeber Alphascript Publishing
- Anzahl Seiten 256
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