Post by bottomburp on Aug 12, 2010 11:02:32 GMT 1
Meteor spectacle 'set to dazzle'
The annual display is caused by debris from the comet Swift-Tuttle
Sky-watchers could be in for "fantastic views" over the next two days as the Perseid meteor shower reaches its peak.
According to Nasa, the shower could produce a display of up to 80 meteors per hour.
"A waxing crescent moon will set before the shower becomes active, setting a perfect stage for meteor watching," said the US space agency on its website.
Experts are urging people to head away from city lights for the best views.
John Mason from the British Astronomical Association (BAA) told BBC News: "Weather-permitting, we should be in for a very good show across the UK.
"The shower has been ongoing for a week now and we have already seen some very bright meteors whizzing overhead."
The Perseid meteor shower is caused by debris from the comet Swift-Tuttle.
Every 133 years, the huge comet swings through the inner part of our Solar System and leaves behind a trail of dust and gravel.
When Earth passes through the debris, specks hit our atmosphere at 140,000mph and disintegrate in flashes of light.
PERSEIDS METEOR SHOWER
The meteors are called the Perseids because they appear to fly out of the constellation Perseus
The yellow dot marks the Perseid radiant. The meteors can appear in any part of the sky, but all of their tails will point back to there
The best views of the meteor shower are likely to be in the Northern Hemisphere
What equipment do you need to observe the meteor shower?
The good news is none! Just use your eyes.
It will help your observation if you give your eyes some time (say 15 minutes), to become adapted to the darkness.
Binoculars may also help, but on the other hand, they may restrict your view to a small part of the sky.
The meteors originate in the region of Perseus, but they may appear in view just about anywhere in the sky. Although, if you were to track-back their trails, you would get to Perseus.
More info here: en.wikipedia.org/wiki/Perseids