Meteor showers occur when Earth moves through a stream of particales
produced by a decaying comet. This is because comets shed enormous quantities of
material during each orbit. Some of the largest being Comet Halley and Encke.
Meteoroid dust is blown away from the cometary nucleus by gas pressure. Most is
lost when the comet is closet to the Sun. A meteor stream develops along the
comet's orbit and is replenished each time a comet completes another orbit of
the Sun. When the parent comet finally disintergrates,it spells the end for one
particular stream as it is not being replenished regularly and its particles
disperse into space.
As the Earth moves along its orbit aorund the Sun, it regularly moves
through streams of meteoroids. Therefore meteor showers are regular and
predictable events and there are well over 20 per year.http://www.astronomytoday.com/astronomy/meteors.html
After reading this excerpt from the article, I remember hearing when meteor showers were going to be and staying up till around 3 in the morning to catch a glimpse. I was not able to watch everyone, but the ones I were able to see were amazing to watch. So my question to you is, "Have you ever stayed up through the night just to watch a meteor shower? If so, was it worth your while to stay up that late?".
Thursday, September 29, 2011
Meteor Showers
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I think its fun to use a little spatial reasoning when picturing outer space. Since I have never seen a meteor shower I can only imagine what it looks like from the ground, so I picture this phenomenon more in the form of a mental model. Understanding the relative motions of celestial bodies is intriguing! For instance, try thinking about an absolutely stationary object in space.
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