What’s Up for August?
› View Vodcast
What’s Up for August? Meteors!
Hello and welcome. I’m Jane Houston Jones at NASA’s Jet Propulsion Laboratory in Pasadena, California.
2009 is International Year of Astronomy. And each month this year we’re showcasing a great celestial object or event.
This month it’s the Perseid Meteor Shower!
Have you ever wondered what makes these cosmic fireworks? Meteor showers are just the debris of a passing comet or sometimes the debris from a fragmented asteroid.
When a comet nears the sun, its icy surface heats up.This causes clouds of gas, dirt and dust to be released, forming a tail of debris that can stretch for millions of miles.
As Earth passes near the dusty tail, some of the dust particles hit our atmosphere.They burn up and create the great celestial fireworks we see.
NASA generates meteor shower forecasts to prevent potential hazards to spacecraft that are launching or orbiting Earth.
NASA also monitors these showers to check the accuracy of the forecasts.
NASA’s Deep Impact mission is now on an extended mission called EPOXI. It will visit comet Hartley 2 in 2010. And the Dawn mission to Vesta and Ceres flies by Vesta for the first time in 2011, and flies by the dwarf planet Ceres in 2015.
You don't need a telescope or binoculars to view a meteor shower. In fact, meteor showers are best seen with the unaided eye.
You'll see some Perseids all month long -- before and after midnight – but the real fireworks will appear in the wee hours of Wednesday, August 12th.Between 2 and 4 a.m. local time, look for up to 100 meteors per hour.
Meteor showers are best seen in the hours after midnight.That's when Earth is facing the direction in which the dust particles are colliding with our atmosphere.
And as a bonus for staying up late, two planets are visible in the eastern sky – one bright and the other faint.
Venus is just rising low on the horizon and is much brighter.Mars, despite that e-mail hoax about it being big and bright this month, appears as a reddish faint star-like object above Venus. And Jupiter shines as a brilliant beacon in the west.Through a telescope, you might even be able to see nearby Neptune!
You can learn all about NASA's missions at www.nasa.gov
That’s all for this month, I’m Jane Houston Jones.
Skywatchers in the UK are getting ready for one of the most exciting displays of shooting stars they are likely to see all year.
Meteor shower: Head north to see shooting stars
The annual Perseid meteor shower reaches its peak this evening and could fill the night sky with hundreds of streaks of light.
The phenomenon occurs when the Earth passes through a stream debris from the comet Swift-Tuttle.
Forecasters say rain and cloud could obscure the spectacle for people in southern areas. The best views will be in the Midlands, the north of England and the northwest of Scotland.
The Perseid shower is a major trending topic on Twitter. Amateur astronomers around the globe are using the social networking website to share their pictures of the spectacle.
All this took about a minute to unfold and the thing 'petered out' after that to nothing.
Users browsing this forum: No registered users and 1 guest