Download e-book for iPad: David Levy's Guide to Observing Meteor Showers by David H. Levy

By David H. Levy

ISBN-10: 0521696917

ISBN-13: 9780521696913

Meteors happen while a meteoroid, a speck of airborne dirt and dust in house, enters the Earth's surroundings. the warmth generated while this occurs motives the encompassing air to glow, leading to 'shooting stars'. through the such a lot wonderful meteor storms greater debris supply upward push to fireballs and firework-like monitors! Meteors are a pleasant watching box - they don't require a telescope, they usually should be obvious on any transparent evening of the yr, even in shiny twilight. It was once the sight of a unmarried meteor that encouraged David Levy to enter astronomy, and during this e-book he encourages readers to head open air and witness those amazing occasions for themselves. This publication is a step by step consultant to gazing meteors and meteor showers. Any worthy technology is defined easily and in truly comprehensible phrases. it is a excellent advent to looking at meteors, and is perfect for either pro and budding astronomers.

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Additional info for David Levy's Guide to Observing Meteor Showers

Sample text

Weather record This important record of your observations should be noted every half hour, or more often if conditions are changing rapidly. Cloud patterns can affect the numbers of meteors you see. Moonlight obviously affects the number of meteors you may see. It helps not only to record the time of moonrise but also to plan your sessions around it. A Perseid watch held around the first quarter Moon on August 6 would be worth a lot more than one conducted on the night of maximum a week later with a full Moon.

That doesn’t preclude the comet and 2003 EH1 being the same object, however. With repeated influences by the planets, especially Jupiter, very small changes in the orbit can translate to very big and hard-to-demonstrate changes when spread out over half a millennium. A similar problem has been encountered trying to bring the orbit of Periodic Comet Levy 1 back that long; its passage in 1991 might be a return of the comet of 1499. All this history brings us back to the predawn hours of January 3, when, if time, the phase of the Moon, and the orbits of Earth and the shower coincide, you might be treated to one of the year’s biggest meteor performances.

The sky will be darker, and more meteors should appear. Comfort As in most branches of astronomical observing, meteor watching is more effective if you are comfortable. Don’t stand up and strain your neck; instead use a lawn chair or hammock and be relaxed. If you are part of a group of observers where each of several people has a different area of sky, each lawn chair can be adjusted so that observers are comfortable. The chair back can be raised to observe the part of sky below 45 degrees, or lowered for observing closer to the zenith.

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David Levy's Guide to Observing Meteor Showers by David H. Levy

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