Wish Upon Some Shooting Stars

Get your cosmic umbrella ready, for you may get caught in the best meteor shower of the year this month!

The night of August 12/13 will be the optimum time to see “shooting stars” in 2010.   (For those of you in Australia, New Zealand, Japan, India and other parts of the eastern hemisphere, your optimum night will be August 13/14.)

Shooting stars are very tiny meteors – basically, dust particles or small ‘pebbles’ – that burn up in a flash of light as they enter Earth’s atmosphere.  These meteors are leftover bits of comets that have passed by Earth in years past: As comets pass by Earth from time to time, they leave a trail of small debris in their wake.  This debris remains in the solar system.  As Earth revolves around the sun each year, Earth passes through the trails of debris.  Each August, Earth travels through a particularly dense trail of debris from a comet called “Comet Swift-Tuttle” that last visited Earth in 1992.

A comet and its two tails
Comets have two tails: Dust particles come from the bright, white tail. When those particles enter Earth's atmosphere and burn up, they become meteors, a.k.a. "shooting stars." The light, blue tail is composed of charged, atomic particles called "ions."

To See the Shooting Stars: All you need to see the shooting stars is a clear sky (away from city lights), a lawn chair, and either:

  • Mosquito repellent if you live in the northern hemisphere of Earth; or
  • Winter clothing if you live in the southern hemisphere of Earth!

Wait for the moon to set, and go outside close to midnight.   Then, lay down on your lawn chair or on a blanket and look up: You don’t need a telescope or binoculars.  You might see as many as 50 shooting stars per hour!  You should see more and more meteors per hour as the night progresses, until just before dawn.  One caveat, though: How many meteors you can see per hour is pretty much hit-or-miss.  Predicting meteor showers is sorta’ like predicting rain showers: It’s not an exact science yet!  But you should see a number of shooting stars. (Don’t forget to make a wish!)

As you see the shooting stars, try to notice where they are coming from in the night sky.  If you have one of our Planisphere constellation finders, you’ll notice the stars appear to be coming from the constellation “Perseus.”  Hence, this annual meteor shower is called the “Perseid Meteor Shower.”

Enjoy the view … and may all your wishes come true!

~

When You Wish Upon A Star
by Louis Armstrong

When you wish upon a star
Makes no difference who you are
Anything your heart desires
Will come to you

If your heart is in your dreams
No request is too extreme
When you wish upon a star
As dreamers do

Fate is kind
She brings to those who love
As sweet fulfillment of their secret drowns
Like a boat out of the blue
Fate steps in and see’s you through

Moma when you wished upon a star
Your dreams come true

[Instrumental break]

Fate is kind
She brings to those who love
As sweet fulfillment of their secret drowns
Like a boat out of the blue
Fate steps in and see’s you through

Baby when you wish upon a star
Your dreams come true
When you wished upon a star
Makes no difference who you are
Your dreams come true

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