This is the most famous of all meteor showers. There is always an impressive display and to give thanks to its summer appearance, it tends to see the majority of the meteors of non-astronomy enthusiasts give. This meteor shower gets the name "Perseids" because it seems to radiate from the constellation Perseus. Begin an observer in the northern hemisphere can see Perseid meteors as early as July 23 when one meteor every hour or so could be visible. During the next three weeks becauseis a slow build. It is possible to five Perseids per hour at the beginning of August and perhaps 15 per hour 10th August on the spot. The Perseids rapidly increase to a peak of 50-80 meteors per hour by the night of 12/13 and then decline rapidly to about 10 per hour to 15 August. The last night meteors are likely to see this meteor shower is 22 August, when an observer could be a Perseid every hour or so to see.
http://www.youtube.com/watch?v=mmTCJSmZc2k&hl=en
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