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Table showing how many meteors will be seen per hour.
Click on image for full size
Courtesy of NASA

Watch Out for the Meteors!
News story originally written on August 10, 1999

This week's solar eclipse isn't the only thing to watch! The annual Perseid meteor shower will peak on August 12-13, 1999. There could be as many as 150 "shooting stars" per hour. Scientists say the best time to see this spectacular event is a few hours before dawn. However, the meteors should be visible all night long, starting at dusk.

These brilliant flashes of light will seem to originate from the constellation Perseus. It is best to lay down on the ground and face north to see the shower. Although they appear to come from the same point in space, they will be visible all over the sky.

Meteors are small fragments that broke off a comet. This particular shower came from Comet Swift-Tuttle, which orbits the Sun once every 135 years. Swift-Tuttle will not be visible from Earth until 2126. Fortunately, we have this great shower every year in August!

Typical meteors are the size of a grain of sand. They make up for their size with their speed. These meteors average 130,000 miles per hour! But don't worry, the particles burn up long before they reach Earth. A particle's high speed causes a large amount of friction between the meteor and Earth's atmosphere. The result is a burned up meteor!

The shower will be visible for most of the Northern Hemisphere. If you live below the equator, I'm afraid that very little, if any at all, will be seen. Fortunately, NASA will provide a live broadcast of the event on the web. They'll fly a balloon into the stratosphere with a video camera. So, no matter where you live, you can witness one of the more fascinating astronomical events!

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA