Rare meteor shower to illuminate Americas

Previously unseen and "potentially spectacular" shower of falling stars to be visible over United States and Canada.

    Rare meteor shower to illuminate Americas
    The meteor shower may move more slowly than the Perseids shower which occurs each August [EPA]

    A meteor shower late on Friday and early Saturday is captivating countless astronomers and amateur skywatchers with the promise of a falling-star show unlike any ever before seen.

    The Camelopardalids meteor shower could start for North American viewers at early as 10:30pm on Friday (0230 GMT Saturday), astronomers say.

    This "potentially spectacular show," according to the US Naval Observatory, should be visible in the United States and Canada, anywhere with a cloudless night sky.

    Unfortunately, the rest of the world is likely to miss out.

    The peak is expected between 3am and 4am (0700-0800 GMT), according to Bill Cooke, head of the National Aeronatics and Space Administration's (NASA's) Meteoroid Environment Office in Huntsville, Alabama.

    "However, I would recommend folks get out a bit earlier, just to be safe," Cooke told AFP.

    Astronomers aren't sure what this meteor shower will look like as they have never seen this one before.

    "Meteor showers are like the weather. They are a little bit hard to predict," said Paul Wiegert, associate professor at the University of Western Ontario.

    This meteor shower originates from the trail of dust behind a small, dim comet known as 209P/Linear. The debris gets tugged into Earth's orbit this year by the force of gravity from Jupiter.

    Meteor showers consist of space rocks that burn up upon hitting the top of Earth's atmosphere, producing a bright flash of light that gives the appearance of a falling star.

    'Hundreds' of falling stars

    "The predictions at this point are that we will see a few hundred meteors per hour," Wiegert told AFP.

    "That means that you would see a few meteors per minute. So it is not a special-effects extravaganza, here, but it is in line with many of the strong annual meteor showers."

    The annual Perseids meteor show that lasts for several days in August is made up of shooting stars that barrel by at a pace of 241,000 kilometres per hour.

    The Camelopardalids meteors will move more slowly, travelling at around 58,000 kilometres per hour, Cooke said.

    A key piece of this meteor shower mystery lies in the ancient trail of dust behind the comet, which was produced centuries ago.

    "The problem we are having is, even though we can tell precisely when these particles are going to encounter Earth's orbit, we don't know how many of them there are," said Cooke.

    Right now the comet does not produce much debris.

    "But we have no idea what it was doing 200 years ago, because it wasn't discovered until 2004," added Cooke.

    Cooke said no special equipment would be necessary to view the shower.

    The optimal forecast for clear weather tends to be in the US southwest, so a special team of NASA astronomers has been dispatched to the Arizona desert to track the meteors.

    Other astronomers have flown in from Europe to observe the skies from a remote astronomy base in Saskatchewan, Canada, Cooke said.

    "While a good show may fail to materialise, this appears to be the most favourable opportunity to view a meteor outburst for many years to come," said the American Meteor Society's Robert Lunsford, encouraging "everyone interested in celestial fireworks" to take a look.

    "If an outburst occurs, it could be a most memorable sight as these particles are predicted to be larger than normal and may produce bright and colourful meteors."



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