4179 Toutatis
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High Quality Content by WIKIPEDIA articles! 4179 Toutatis/1989 AC is an Apollo, Alinda, and Mars-crosser asteroid with a chaotic orbit produced by a 3:1 resonance with the planet Jupiter and 1:4 resonance with the planet Earth. Due to its very low orbital inclination and its orbital period of very nearly 4 years, Toutatis makes frequent close approaches to Earth, with a currently minimum possible distance of just 0.006 AU. The approach on September 29, 2004 was particularly close, at 0.0104 AU from Earth, presenting a good opportunity for observation, with Toutatis shining at magnitude 8.9…mehr

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High Quality Content by WIKIPEDIA articles! 4179 Toutatis/1989 AC is an Apollo, Alinda, and Mars-crosser asteroid with a chaotic orbit produced by a 3:1 resonance with the planet Jupiter and 1:4 resonance with the planet Earth. Due to its very low orbital inclination and its orbital period of very nearly 4 years, Toutatis makes frequent close approaches to Earth, with a currently minimum possible distance of just 0.006 AU. The approach on September 29, 2004 was particularly close, at 0.0104 AU from Earth, presenting a good opportunity for observation, with Toutatis shining at magnitude 8.9 when brightest. The most recent close approach happened on November 9, 2008 at 12:23 UTC. The low inclination of the orbit allows frequent transits, where the inner planets Mercury, Venus, Earth, and Mars can appear to cross the Sun. Earth did this in January 2009, and will also do it in 2012, 2016, and 2020.