Summer's annual meteor shower promises to put on a dazzling show when it peaks this weekend — provided you're far from city lights. With no moon in sight to interfere with the Perseid meteor shower, skygazers can expect to spot streaking fireballs late Sunday into dawn Monday regardless of time zone. Astronomers estimate as many as 60 meteors per hour could flit across the sky at the shower's peak.
This year's sky show comes with an added bonus: Mars will be visible as a bright red dot in the northeastern sky.
"We have front-row seats this year," said Kelly Beatty, executive editor of Sky & Telescope magazine.
Last year's Perseid shower was somewhat of a dud because the moon's glare washed out many of the faint meteors. This weekend's meteor shower coincides with a new moon, which means the skies will be dark and perfect for viewing meteors.
Experts offer some tips to get the most out of nature's fireworks: Since Perseid meteors can be seen from any direction in the sky, viewers should pick out a dark patch of sky free of light pollution and wait for the meteors to appear.
Dim meteors appear as a momentary flash of light while the brighter ones leave a glowing streak. The number of Perseids zipping across the sky should increase steadily through the night, peaking just before sunrise. Although the peak occurs this weekend, the Perseids are visible for several nights after that.
Unlike other celestial sightings that require a telescope or binoculars, the best way to watch a meteor shower is with the naked eye.
The Perseids are perhaps the most beloved of all meteor showers because of their predictability. The August shower gets its name from the constellation Perseus because the meteors appear to originate there.
The annual Perseid shower occurs when the Earth's orbit crosses the path of debris thrown off by Comet Swift-Tuttle. As the cosmic junk — many the size of a grain of sand — enters the atmosphere, it burns up in a flash, appearing as "shooting stars" across the sky.
In the past, the Perseid showers have produced such spectacular displays that people swamped radio stations with reports of a mysterious light in the sky.
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The Perseid meteors appear to stream away from their radiant near the border of Perseus and Cassiopeia. And while you're outside on a dark night, don't forget to look for the Double Cluster and the Andromeda Galaxy, two of the easiest "faint fuzzies" to spot with your unaided eyes.
August is the best month overall to view meteors from the Northern Hemisphere, according to Robert Lunsford, operations manager of the American Meteor Society. And conditions are ideal this year because the Perseid meteor shower peaks on the new-Moon night of Sunday–Monday, August 12–13.
The Perseids are one of the two strongest and most reliable annual meteor showers. (The other is December's Geminids.) And while some showers produce brief bursts lasting just a few hours, the Perseids have a broad peak. So don't despair if clouds are forecast for Sunday night — or if work obligations prevent you from staying up until dawn on Monday. Even now, a week before the peak, you can see up to a dozen Perseids per hour if conditions are perfect. That's stronger than some meteor showers at their best!
The meteor rate increases to roughly 30 per hour in the predawn hours on Saturday, 45 per hour on Sunday morning, and 80 per hour before the sky starts to get light on Monday morning. That's for a single observer at a dark-sky site in the north temperate latitudes.
The Perseid meteors appear to stream away from their radiant near the border of Perseus and Cassiopeia. And while you're outside on a dark night, don't forget to look for the Double Cluster and the Andromeda Galaxy, two of the easiest "faint fuzzies" to spot with your unaided eyes.
S&T IllustrationPerseid meteors are visible in every part of the sky. But wherever you see them, they appear to be moving away from the shower's radiant point near the Perseus/Cassiopeia border. This is a perspective effect, happening for the same reason that snowflakes appear to stream away from the center of the road when you're driving through a snowstorm.
On any given night, activity starts slowly in the evening but picks up by 11 p.m., when the radiant gets reasonably high in the sky. The meteor rate increases steadily through the night as the radiant rises higher, peaking just before the sky starts to get light, roughly 1½ to 2 hours before sunrise.
For the most pleasant viewing experience, find a spot far from any city lights. Perseids tend to be relatively bright as meteors go, but you'll still see more the darker your skies are. Bring a reclining chair so that you can view high in the sky in comfort; there's no point in filling half your field of view with trees. Don't forget warm, mosquito-proof clothes or, better, a sleeping bag. No matter how hot the days are, it can get surprisingly chilly under a clear sky late at night, especially whan you're inactive. And for many people, the most important accessory is bug spray for the parts of you that remain exposed!
It doesn't really matter where in the sky you watch; meteors can appear anywhere. Just watch where it's darkest, usually straight up. It's probably best not to stare directly at the radiant, because meteors there leave short trails.
Keep track of the direction each meteor is moving. Though most will be Perseids, you'll probably see plenty of Delta Aquarids moving more or less in the opposite direction. And this time of year is also good for sporadic meteors not associated with any recognized shower.
HOPE YOU GET TO ENJOY IT!
('Hope we get to SEE it - we have rain in OUR forecast for tomorrow..)
