Tuesday, February 3, 2015

and Richard PGAPereira by Talcott. You can expect to see up to 100


and Richard PGAPereira by Talcott. You can expect to see up to 100 "shooting stars" per hour or 2,013 on the best meteor shower peaks before dawn on August 12. If you ask most skygazers, amateur astronomers, to choose your favorite rain meteors, chances are good that the "Perseids" is the first word that comes out of your mouth. This annual shower seemingly has it all: It offers a consistently high rate of meteors, year after year, but produces a higher ionizer percentage of brighter than most other showers, which takes place in August, when many people take summer vacation, and it comes at a time when the good weather and the night temperatures are reasonable and common in the north of the equator. No other large shower can boast of all these four attributes. And the Perseid meteor shower this year promises another significant advantage. Peaks under a sky without ionizer the moon From mid-latitude North, the first quarter moon sets just after 10 pm local daylight saving time on day 11. As always, ionizer you will see more meteors on a site seeing far from artificial lights. The senior editor Michael Bakich journal Astronomy love watching meteor showers, particularly spectacular as the Perseids. "It has to be one of the easiest, most relaxing form of entertainment available for backyard skygazers," he says. "No need for a telescope because the narrow perspective helps your field of view, and you want to take as much sky as possible. And best of all, you can watch the show while lying down. Who could ask for more?" The Perseids begin as tiny dust particles that reach the Earth's atmosphere at 37 kilometers per second (59 km / s), vaporize with the friction with the air and leaving behind the rays of light called meteors. The meteors appear to radiate from a point on the border between the constellations of Cassiopeia and Perseus (the latter names the shower). This so-called radiant lies about a third of the way from the horizon to the zenith northeast around midnight local daylight saving time and rises higher as approaches at dawn. How to observe meteor showers video benefiting from a meteor shower requires only comfort and patience. If forecasts hold, observers ionizer throughout eastern Europe and northern Asia could witness 100 meteors per hour, are seen under clear dark skies. Viewers in North America should see up to 80 meteors per hour - still an average of more than one per minute - in the hour or two before sunset begin to break down after four hours of the local daylight saving time. If the cloudy skies prevail on 12, look on the morning of the 13th, when rates will be slightly smaller, but still impressive. ionizer Fast facts: The dust particles that create Perseids meteors were born in the comet known as 109P / Swift-Tuttle. This object ionizer orbits the Sun once every 130 years, but during its passage ionizer returned to the inner solar system in 1992. Despite (37 miles per second) 59 km / s may seem fast, the Perseids meteors are not the fastest between the annual showers. The Leonidas November topping the charts, reaching our atmosphere at 44 kilometers per second (71 km / s). Although most of the shower meteors meet their demise in the upper atmosphere of the Earth, at altitudes between (50 and 70 miles) 85 and 115 km, some larger particles survive less than (12 miles) 20 km from the surface. These generally produce ionizer "fireballs" that shine as much as or brighter than Venus. Note: The image is from the Northern Hemisphere East, turn it to match your geographic region.
2015 (1) January (1) 2014 (33) December (1) November (1) September (2) August (4) July (3) June (3) May (4) April (4) March (6) January (5) 2013 (59) December (10) November (4) October (5) September (7) August (6) Pulsar helps unravel the core of the Milky Way Spectrograph IRIS observes the Sun's atmosphere Sea of liquid water under the surface of the moon Europa ... Perseids meteor shower on August 12 Kilonovas ionizer Hubble ALMA and the mystery of the lack of massive galaxies ionizer July (3) June (5) May (3) April (5) March (1) February (4) January (6) 2012 (50) December (4) November (4) October (5) September (5) August (4) July (4) June (5)

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