I set by
the window at night, looking through the glass on the night sky. I saw the moon and stars. They are shining and beautiful at every
night. In some old stories, it saying a
star falls, a soul fill up and rise to heaven bring together your wish to God. When
you make a wish at once you see the Meteor, meteor will catch your wish make it
comes true. Meteor comes from past cross present go to future, your wish would finally
realized.
I missed a time to see Orionid
Meteor Shower in
Meteors are bright trails of light in the
sky when interplanetary particles or meteorites enter the Earth's atmosphere at
high speed and burn in friction.
Sometimes, many meteors streak across the
sky with similar trajectories forming meteor showers. These meteors appear to
emanate from the same point in the sky. Meteor showers typically last a few
hours to a few days and recur every year though with varying intensities.
Let us to know more about meteor shower :
The meteor shower is that many of the meteor from the sky in a so-called
radiation point emitted by astronomical phenomena in the night sky. There float in the
vast reaches of our Solar System swarms of sand bits and dust clods known as
meteoroids. When these "space debris" tear into the Earth's
atmosphere, air friction causes them to burn, forming momentary bright streaks
that blaze across the sky. These are the meteors that we see from time to time.
Meteors often appear as
sporadic lonely streaks that traverse somewhat random paths in the sky. This
sporadic activity, which persists throughout the year, can account for about 10
visible meteors every hour on a clear night.
A "meteor shower"
occurs when our home planet encounters a relatively dense region of meteoroids
in space. An unusually large number of meteors can then be seen streaming from
a certain point in the sky known as the "radiant". Most astronomers
believe that meteoroids are of cometary origin. They are leftovers from
periodic comets or are even fragmented comet nuclei. This at least accounts for
the fact that a particular group of meteoroids shares with its parent comet
more or less the same orbit, which can remain relatively unchanged over eons. An
immediate consequence is that our Earth makes periodic rendezvous with this
meteoroid swarm, thereby culminating in a regular display of these celestial
fireworks. To name a few, we have the Lyrids in April and the Geminids in
December.
Most of the meteor body than even small gravel,
almost all meteoroids will be destroyed within the atmosphere, it will not hit
the Earth's surface and able to hit the fragments of the Earth's surface is
called a meteorite. A large number of special or unusual performance meteor
shower will be referred to as "prominent meteor" or "meteor
storm" may hour meteor will be more than 1,000 pieces.
The color of a meteor is the chemical composition
of the meteoroid and a manifestation of the reaction temperature: sodium atoms
emit light orange, yellow iron, magnesium is blue-green, calcium purple,
silicon is red.
http://www.lcsd.gov.hk/ce/Museum/Space/StarShine/AstroEvent/MeteorShower/e_starshine_ae_ms.htm
http://www.imo.net
http://occultation.freebbs.tw/viewthread.php?tid=858
