These meteors are caused by streams of cosmic debris called meteoroids entering Earth's atmosphere at extremely high speeds on parallel trajectories. Most meteors are smaller than a grain of sand, so almost all of them disintegrate and never hit the Earth's surface. Fragments that do survive impact with Earth's surface are called meteorites. Intense or unusual meteor showers are known as meteor outbursts and meteor storms, which may produce greater than 1,000 meteors an hour.[1]
The shower is visible from mid-July each year, with the peak in activity being between August 9 and 14, depending on the particular location of the stream. During the peak, the rate of meteors reaches 60 or more per hour. They can be seen all across the sky, but because of the path of Swift-Tuttle's orbit, Perseids are primarily visible in the northern hemisphere. As with all meteor showers, the rate is greatest in the pre-dawn hours, since the side of the Earth nearest to turning into the sun scoops up more meteors as the Earth moves through space. In 2009, the peak Zenithal Hourly Rate was about 120[citation needed], but fainter meteors were washed out by a waning gibbous moon.
Perseids Meteor To Streak Across Sky At Midnight Thursday
KUALA LUMPUR, Aug 11 (Bernama) -- There will be a dazzling display of shooting stars between Thursday (midnight) and Friday (dawn) as a meteor is expected to streak across the sky.
The Perseids Meteor Shower might also create a fascinating light rainfall not to be missed, said Prof Mohd Zambri Zainuddin of Universiti Malaya's department of physics.
He said meteor observers could spot about 100 streaks of meteor light across the sky hourly, at or near the shower peak which could well be after midnight.
Mohd Zambri told Bernama that many were unaware of this event, adding that some were even ignorant of the Perseids Meteor Shower.
"The people should come forward to view these shooting stars as they could learn the process of how and why this shower happens," he said.
Mohd Zambri said various campaigns and seminars should be held to create awareness on the meteor streak.
He explained that a meteor showered the sky when comets got closer to the Sun and fragmented into small particles, which in turn, created many bright meteors.
According to a statement issued by a resort in Bagan Lalang, Sepang, observers could watch the Perseids meteors after midnight tomorrow until dawn.
"The sky conditions will be excellent for observing the meteor shower after midnight when the waxing cresent moon is already set," it said.
A member of Star Hunter Astronomical Society, Chin Wei Loon, said the two-day activity by Perseid meteors would be interesting because only northern hemisphere countries such as Malaysia, could experience the event.
"Actually, we can see meteors daily, with five to 10 streaks an hour, but not as much as the Perseids meteors which burst into streaks all over the sky," he said.
Chin said there were another two major meteor showers, namely Leonids and Germinids.
Leonids lights up the sky every 33 years while Germinids occurs every December.
ni antara hasil dari group pencerap,
video ni adalah hasil dari teknik time lapse,
gambar di ambil menggunakan DSLR dan remote control,
setting dibuat utk beberapa ratus keping gambar,
seterusnya stack gmbr dlm bentuk movie, jadilah ia... video dibawah ini....
lokasi pantai timur, objek yg ditonjolkan adalah pandagan milky way, galaksi kita dari bumi,
dpt dilihat center galaksi, padat dgn bintang2 so jadi cerah dibahagian tghnya.
The image of the shooting star was photographed from the orbiting ISS on Aug. 13 when it was over an area of China approximately 400 kilometers to the northwest of Beijing.
ko mesti ade teleskop kn? bleh la ajr aku cmner nk blie teleskop... aku mnat deep space ngn planet... klo model meade ok x? xpn model celestron ke? aku nk tnye dlu tkut slah blie nyesal plak nti... huhu... bgla tips sket... huhu... please... huhu;)
Post time 12-8-2010 12:32 PM
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