Loading ...
Sorry, an error occurred while loading the content.

Fw: NUFOIA: Close shave with asteroid

Expand Messages
  • Jeroen Kumeling
    ... Van: Ndunlks@aol.com Aan: undisclosed-recipients:; Datum: woensdag 5 januari 2000 6:23 Onderwerp: NUFOIA:
    Message 1 of 1 , Jan 5, 2000
    • 0 Attachment
      -----Oorspronkelijk bericht-----
      Van: Ndunlks@... <Ndunlks@...>
      Aan: undisclosed-recipients:; <undisclosed-recipients:;>
      Datum: woensdag 5 januari 2000 6:23
      Onderwerp: NUFOIA: Close shave with asteroid


      |Wednesday, May 19, 1999 Published at 17:16 GMT 18:16 UK
      |
      |Close shave with asteroid
      |
      |The suspect asteroid is one kilometre wide
      |
      |By BBC News Online Science Editor Dr David Whitehouse
      |A large asteroid could miss the Earth by only 38,000 kilometres in 2027,
      |according to new astronomical observations. This is an extremely close
      shave
      |- the Moon orbits 10 times further from Earth.
      |
      |The calculations suggest that an impact is not possible that year but, in
      |theory, the Earth's gravity could perturb the asteroid's path, possibly
      |leading to an impact in 2039.
      |
      |The near-miss trajectory of a newly-discovered asteroid, called 1999 AN10,
      |was announced in April. Now, the observational data of Australian
      astronomer
      |F. Zoltowski allows calculations of just how close the asteroid may come to
      |Earth.
      |
      |Closer and closer
      |
      |Astronomers at the Minor Planet Center at the US Smithsonian Astrophysical
      |Observatory used Zoltowski's work to work out an estimated approach
      distance
      |for AN10 of 56,500 kilometres from Earth. The fly-by will occur on August
      7,
      |2027.
      |
      |But the closest possible distance that AN10 could come to the Earth on that
      |day is only 38,000km.
      |
      |The calculations suggest the asteroid will not impact. But the new
      |calculations confirm the initial speculation that the asteroid might
      approach
      |within the Earth's sphere of gravitational influence.
      |
      |It could therefore be perturbed in such a way that it might impact some
      years
      |later.
      |
      |Impossible to predict
      |
      |Dr Benny Peiser of Liverpool John Moore's University in England says that
      the
      |chaotic behaviour of this asteroid makes it practically impossible to
      predict
      |all possible approaches for more than a few decades after any close
      |encounter.
      |
      |He says the orbit will remain dangerously close to the orbit of the Earth
      for
      |about 600 years.
      |
      |Astronomers stress that a collision is only one of a range of possibilities
      |for this kilometre-wide chunk of rock. If it did strike, it would cause
      |continent-wide devastation and alter the Earth's climate.
      | <A
      HREF="http://news.bbc.co.uk/hi/english/sci/tech/newsid_347000/347764.stm">
      |BBC News | Sci/Tech | Close shave with asteroid</A>
      |
      |
      |
      |------------------------------------------------------------------------
      |Looking for educational tools for you kids?
      |Find everything you need at SmarterKids.com
      |http://click.egroups.com/1/645/5/_/9126/_/947049788
      |
      |-- Easily schedule meetings and events using the group calendar!
      |-- http://www.egroups.com/cal?listname=ufolist&m=1
      |
      |
      |
    Your message has been successfully submitted and would be delivered to recipients shortly.