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Aten Asteroid
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Details
The Aten asteroids are a group of near-Earth asteroids, named after the first of the group to be discovered. They are defined by having semi-major axes of less than one astronomical unit. Note that, because asteroids' orbits can be highly eccentric, an Aten orbit need not be entirely contained within Earth's orbit; in fact, nearly all known Aten asteroids have their aphelion greater than one AU. Those that have their aphelion entirely within the Earth's orbit are known as Apohele asteroids. As of March 2008 there are only five known Apoheles Atira, and four suspected Apoheles.The smallest semi-major axis is that of 1999 KW4, at 0.642 AU, although 2004 JG6 seems to have an even smaller one.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130696085
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Sprache Englisch
- Genre Physik & Astronomie
- Größe H220mm x B150mm x T4mm
- Jahr 2010
- EAN 9786130696085
- Format Fachbuch
- ISBN 978-613-0-69608-5
- Titel Aten Asteroid
- Untertitel Aten asteroid, 2062 Aten, Eleanor F. Helin, Semi-major axis, Near-Earth object, Astronomical unit, Earth, Apsis, Apohele asteroid, 163693 Atira
- Gewicht 124g
- Herausgeber Alphascript Publishing
- Anzahl Seiten 72
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