99942 Apophis

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Geliefert zwischen Mi., 26.11.2025 und Do., 27.11.2025

Details

99942 Apophis is a near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a small probability that it would strike the Earth in 2029. Additional observations provided improved predictions that eliminated the possibility of an impact on Earth or the Moon in 2029. However, a possibility remains that during the 2029 close encounter with Earth, Apophis will pass through a gravitational keyhole, a precise region in space no more than about 600 meters across, that would set up a future impact on April 13, 2036. This possibility kept the asteroid at Level 1 on the Torino impact hazard scale until August 2006. It broke the record for the highest level on the Torino Scale, being, for only a short time, a level 4, before it was lowered.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786130679354
    • Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
    • Genre Physik & Astronomie
    • Größe H5mm x B220mm x T150mm
    • EAN 9786130679354
    • Format Fachbuch
    • Titel 99942 Apophis
    • Gewicht 124g
    • Herausgeber Alphascript Publishing
    • Anzahl Seiten 80

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