Asteroid predicted to buzz earth

Discussion in 'Astronomy, Exobiology, & Cosmology' started by Hotspur13, Aug 19, 2005.

  1. Hotspur13 Registered Member

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  3. blobrana Registered Senior Member

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    Cool,
    Yesterday’s news brought professionally to you today.

    The potential impact zone BTW stretches across from Bangladesh to France across some of the most populous area. There is even the risk of tsunami affecting the east coast of America.

    The potential impact area in 2036 is off the Pacific coast of North America (The narrow zone stretches from Central America to Siberia). This impact would create a 9 metre high tsunami that could strike southern California.

    However, the April 13, 2029 close flyby may create tidal forces within the asteroid, causing asteroid quakes. If the asteroid has a low density (less than half that of water), then Apophis could be completely disrupted (similar to Comet Shoemaker-Levy that struck Jupiter).


    Try a <b>search</b> for `2004MN4` or `asteroid` here …
     
    Last edited: Aug 19, 2005
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  5. Okeydoke Registered Senior Member

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    Let's see. Hmmmm.........If the asteroid hits in the middle of Yellowstone in 2036, we won't have to worry about 'The Day After Tomorrow', will we?

    Okeydoke
     
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  7. AA Institute Registered Senior Member

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    "It is believed Earth's gravity will deflect the asteroid's trajectory, making it harder to predict its future course but potentially bringing it closer to Earth."

    That is a little unsettling...

    ---
    AA
    http://www.publishedauthors.net/aa_spaceagent/
     
  8. blobrana Registered Senior Member

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    Researchers have found evidence from an Ice Core of a Large Impact that occurred circa 1443 S.D.

    Dallas Abbott of the Lamont-Doherty Earth Observatory (LDEO) and her colleagues analysed melt water from nine samples taken from the West Antarctic Siple Dome ice core that date between 1440 and 1448 A.D. and found high values of potassium and calcium as well as impact glass, microcrystalline magnetite, minerals and five microfossils corresponding to the 1443 A.D. level.

    The data appears to correspond with the timing and effects of an impact that produced a 24km crater on the southern New Zealand shelf and that may have resulted in tsunami run-ups of as much as 130m in Jervis Bay Australia.

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    Mahuika crater is a submarine bolide impact crater, 20±2 kilometres wide and over 153 meters deep, on the New Zealand continental shelf at 48°18′S 166°24′E, named for the Maori god of fire.

    Around that time, the natives of New Zealand abandoned their southern coastal settlements. It has been supposed that an earthquake-induced tsunami was the cause. However, such a tsunami would have to have been some five times larger than any other in the area to account for the geological evidence, both in New Zealand and on Australia's east coast.
     

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