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Catch the Perseids meteor shower!
8/9/2018 Volume XLVIII, No. 32

You’re looking up at the night sky when – whoosh! – a brilliant streak of light whizzes past so quickly you almost miss it. Some shooting stars contain ancient stardust, far older than our young solar system - tiny diamonds manufactured deep within an exploding star somewhere in our Milky Way galaxy over 10 billion years ago!

 Everything on Earth except hydrogen atoms - essentially all of you and everything you have ever seen, breathed, or touched – came from nuclear fusion deep within a collapsing star that exploded long ago.

As Carl Sagan said, “we are made of star-stuff.”   Shooting stars are meteors. Most are tiny and disintegrate into dust in the atmosphere. A meteor fragment large enough to reach the ground is a meteorite, like the 1969 Allende Meteorite that fell into the Chihuahuan desert in Mexico, or the 2008 Almahata Sitta meteorite that fell into the Nubian Desert in Sudan.

Comet Swift-Tuttle was first recorded by the Chinese in 69 BC. Its orbital path brings it near Earth only about every 133 years. We will need to worry on about September 15, 4479, when it passes extremely close to our Earth-moon system.

But every August we pass right through a dust and meteor cloud strewn through Swift-Tuttle’s orbital path.  As the dust and tiny fragments fall through our atmosphere, friction with air incinerates the ancient comet fragments, lighting the night sky with shooting stars. When conditions are perfect, especially after 2 a.m., you might see one every minute!

This year, the Perseids meteor shower started on July 17 and will conclude about Aug. 26, when our planet moves out of the Swift-Tuttle debris field. The greatest concentration of meteors is predicted for Aug. 11 through 13. During peak times, stargazers may see 60-70 shooting stars an hour.

According to NASA, this August’s lunar cycle is optimal for viewing the Perseids. The new moon is on Aug. 11, meaning the skies will be fairly dark for several nights before and after. From Aug. 12-17, the waxing crescent moon will set before midnight, making for good viewing conditions in the early morning hours.

Here are some tips for watching the Perseids:

  • Get away from light pollution. If possible, leave the city and suburbs, or at least find an unlit large open park or ballfield. Beaches, scenic overlooks, and the Pine Barrens can be excellent. If you live in a dark sky area and have an open back yard, stay home to watch! If you’re feeling ambitious, throw a shooting star party!
  • The best time to look is between midnight and sunrise, as the Earth’s rotation turns the upper atmosphere into the fresh, un-bulldozed path of comet debris. Use a reclining chair or blanket, and gaze up at the sky. Your eyes need about 20 minutes to adjust to the dark, so turn off flashlights and be patient. Spend most of your time looking toward the constellation Perseus. Print out a star map for New York or Philly for the correct time and date to find Mirfak, the brightest star in Perseus, generally to the northeast. You can also locate Mirfak by downloading an astronomy smartphone app.
  • If you’re lucky, you’ll be treated to a steady shower of meteors streaking across the sky. Most meteors range from the size of a pebble to the size of a grain of sand, and they travel at 37 miles per second! You may see some especially bright meteors known as “fireballs,” brighter than the magnitude of the planet Venus. Rarer is a “bolide,” a type of fireball that explodes in a bright terminal flash at its end.

You may wonder if any of these space rocks will fall to Earth. Yes … but not many and probably not near you.

According to the American Meteor Society, 10 to 50 meteorites drop to Earth each day. “It should be remembered, however, that two-thirds of these events will occur over ocean, while another one-quarter or so will occur over very uninhabited land areas, leaving only about 2 to 12 events each day with the potential for discovery by people,” the Society said.

Put another way, the odds are that any given one-square-mile piece of land will have only one meteorite fall on it every 20,000 years. There are two documented meteorite/person collisions - 1954 in Sylacauga, Alabama, and 2009 in Essen, Germany. Both victims had only minor injuries. The dinosaurs weren’t so lucky. When an entire comet blasted into the Yucatan and Gulf of Mexico 65 million years ago, climate changes ended the Age of Reptiles, setting the stage for the evolution of all primates.

If you miss the Perseids, you can see other meteor showers this year. The Orionid meteor shower – associated with the famous Halley’s Comet - will peak on the night of Oct. 21-22; the Taurids on Nov. 10-11; the Leonids on Nov. 17-18; the Gemenids on Dec. 13-14; and the Ursids on Dec. 21-22.

To learn more about meteors, visit the American Meteor Society website at or NASA’s education page at

And for information about preserving New Jersey’s land – which helps protects dark sky places for star-gazing – visit the New Jersey Conservation Foundation website at or contact me at



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