Showing posts with label Meteor. Show all posts
Showing posts with label Meteor. Show all posts
Thursday, August 13, 2015
It's showtime for Perseid meteors
Dark skies due to a nearly invisible moon will make this year's Perseid meteor shower -- peaking Wednesday and Thursday -- an especially star-studded event, astronomers say.
So grab a folding chair, prepare a list of wishes, and get as far from bright city lights and clouds as you can to watch the natural firework display.
You do not even need a telescope or special, geeky glasses.
At its peak, up to 100 shooting stars per hour will streak across the sky -- more than one a minute.
Viewing is expected to be even easier this year because the moon's glow won't interfere with meteor-watching, as it will be approaching its darkest or "new" phase, experts say.
The light show will be visible around the globe, but especially bright in northern latitudes above the United States, Europe and East Asia.
What we often call "falling stars" are actually tiny bits of space rock that smash into the atmosphere at about 60 kilometres (37 miles) per second, burning up in flashes of light.
Occasionally, longer and brighter streaks are seen, from pea- or marble-sized comet remnants.
The flaming nuggets visible over the next couple of days are from the tail of the Swift-Tuttle comet, which swings around the solar system every 130 years or so.
"All comets probably have a bad case of dandruff," said Carolin Crawford, the public astronomer at the University of Cambridge's Institute of Astronomy.
"But this one is one where the Earth's orbit takes it smack through the centre of the trail of debris that it leaves behind."
Swift-Tuttle last crossed paths with Earth's orbit in 1992.
The visual intensity of the meteor shower is caused not only by the number of space pebbles streaking into the atmosphere but also by the angle at which we approach them.
"It's like driving through a snow storm," said Jackie Faherty, an astronomer at the American Museum of Natural History.
"A meteor shower is a collision between the Earth" -- whipping through Space -- "and this debris tail," she explained.
"We are not hitting one little spot, but turning through it. As in a snow storm, when you are in the front of a car it looks way worse than when you are at the back."
Amateur interest around the globe is high, but astronomy shops in London were not exactly buzzing with talk of the meteor shower Wednesday.
"It's not something we spend a great amount of time chatting to people about," said someone from The Widescreen Centre, an astronomy supplies store.
"Meteor showers are best seen with the unaided eye and we can't sell people equipment to do that."
The showers are named after the constellation of Perseus, the hero from Greek mythology who beheaded the snake-headed Medusa to save the princess Andromeda.
"It's going to be a spectacular show this year," astronomer Morgan Hollis of the Royal Astronomical Society told AFP previously. "You'll be able to a see a lot more than normal."
source: www.abs-cbnnews.com
Sunday, January 1, 2012
PAGASA: Meteor shower to peak January 3 and 4
Stargazers will get an early treat in 2012 with the annual Quadrantid meteor shower, which will be active from January 1 to 7.
The Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) said the meteor shower will peak Jan. 3 to 4, with 40 meteors seen per hour.
"The observation of its peak activity on January 3-4 in which meteors or 'falling stars' can be seen at the rate of at least 40 meteors per hour. The shower will appear to radiate from the constellation of Bootes," PAGASA administrator Nathaniel Servando said.
Servando said the Quadrantid meteor shower hits the Earth's atmosphere at the rate of about 40 km per second.
He said the incinerated dust is believed to be particles from the debris ejected by the near-Earth asteroid 2003 EH.
Meanwhile, PAGASA said Venus will be visible in January, shining brilliantly at magnitude -3.8 and will be standing at about 20 degrees above the west southwestern horizon.
"It will lie between the boundary of the constellation Capricornus, the Goat and Aquarius, the Water Bearer. The brightest planet will be observable throughout the evening sky of the month of January," Servando said.
Mars and Saturn will also be visible.
Mercury will be found low in the east-southeastern horizon until it slides down from the evening sky on January 17.
Jupiter, Uranus and Neptune will be found above the west-southwestern part of the sky and will lie among the background stars of the constellation Pisces, the Fish for Jupiter and Uranus and the constellation Aquarius, the Water Bearer for Neptune.
Stars and constellations
Servando said the famous equilateral triangle in the sky, the Winter Triangle, rises after sunset.
It includes Betelgeuse, the super giant red star and the prominent star of the famous constellation Orion (the Mighty Hunter), Sirius, the brightest star in the sky of the constellation Canis Major (the Big Dog), and Procyon, the brightest star of the constellation Canis Minor (the Little Dog). — LBG, GMA News
source:gmanetwork.com
The Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) said the meteor shower will peak Jan. 3 to 4, with 40 meteors seen per hour.
"The observation of its peak activity on January 3-4 in which meteors or 'falling stars' can be seen at the rate of at least 40 meteors per hour. The shower will appear to radiate from the constellation of Bootes," PAGASA administrator Nathaniel Servando said.
Servando said the Quadrantid meteor shower hits the Earth's atmosphere at the rate of about 40 km per second.
He said the incinerated dust is believed to be particles from the debris ejected by the near-Earth asteroid 2003 EH.
Meanwhile, PAGASA said Venus will be visible in January, shining brilliantly at magnitude -3.8 and will be standing at about 20 degrees above the west southwestern horizon.
"It will lie between the boundary of the constellation Capricornus, the Goat and Aquarius, the Water Bearer. The brightest planet will be observable throughout the evening sky of the month of January," Servando said.
Mars and Saturn will also be visible.
Mercury will be found low in the east-southeastern horizon until it slides down from the evening sky on January 17.
Jupiter, Uranus and Neptune will be found above the west-southwestern part of the sky and will lie among the background stars of the constellation Pisces, the Fish for Jupiter and Uranus and the constellation Aquarius, the Water Bearer for Neptune.
Stars and constellations
Servando said the famous equilateral triangle in the sky, the Winter Triangle, rises after sunset.
It includes Betelgeuse, the super giant red star and the prominent star of the famous constellation Orion (the Mighty Hunter), Sirius, the brightest star in the sky of the constellation Canis Major (the Big Dog), and Procyon, the brightest star of the constellation Canis Minor (the Little Dog). — LBG, GMA News
source:gmanetwork.com
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