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• #120 brownus veterán

  Új Válasz 2005-08-04 14:23:31 #120

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  brownus

  veterán

  most küldték mélben:
  
  Mark Your Calendar.
  
  > The Red Planet is about to be spectacular!
  
  > This month and next, Earth is catching up with Mars in an encounter that
  > will culminate in the closest approach between the two planets in
  > recorded history. The next time Mars may come this close is
  > in 2287. Due to the way Jupiter's gravity tugs on
  > Mars and perturbs its orbit, astronomers can only be
  > certain that Mars has not come this close to Earth
  > in the Last 5,000 years, but it may be as long as
  > 60,000 years before it happens again.
  
  > The encounter will culminate on August 27th when
  > Mars comes to within 34,649,589 miles of Earth and
  > will be (next to the moon) the brightest object in
  > the night sky. It will attain a magnitude of -2.9
  > and will appear 25.11 arc seconds wide. At a modest
  > 75-power magnification
  
  > Mars will look as large as the full moon to the naked eye.
  
  > Mars will be easy to spot. At the
  > beginning of August it will rise in the east at 10p.m.
  
  > and reach its azimuth at about 3 a.m.
  
  > By the end of August when the two planets are
  > closest, Mars will rise at nightfall and reach its
  > highest point in the sky at 12:30a.m. That's pretty
  > convenient to see something that no human being has
  > seen in recorded history. So, mark your calendar at
  > the beginning of August to see Mars grow
  > progressively brighter and brighter throughout the
  > month.
  
  > Share this with your children and grandchildren.
  
  > NO ONE ALIVE TODAY WILL EVER SEE THIS AGAIN
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  Bővebben: link
  

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