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Partial dichotomy
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They seem to shoot from the constellation of the twins Gemini, but the bold, bright, white shards of light that crop up like clockwork in the night sky in the lead-up to Christmas really originate much closer to home. Seeming to radiate from Gemini’s bright star Castor as it rises in the early evening, just before 9 p.m. your local time, a darting spectacle of lights appears. It's an intense meteor shower.

Here's what you need to know to enjoy this famously spectacular and prolific seasonal meteor shower—certainly one of the year's best!
The Meteor Shower's Radiant

Bright star Castor actually lies 51 light years away. And while these shooting stars seem to emanate from that faraway star, they don’t actually. Meteors are bits of cosmic debris littering space colliding with Earth’s upper atmosphere and burning up in our sky a mere 60 miles overhead. This particular shower is dubbed the Geminids, after the constellation Gemini where they seem to shoot from.
This is a faux convergence of stars and meteors, really. All that space debris actually travels in parallel, orbiting the sun, never converging. Akin to train tracks running parallel toward the horizon, the meteors seem to converge but never do. The point in our nighttime sky where their paths seemingly meet is called the "radiant". The Geminids’ radiant aligns almost perfectly with the bright star Castor.

The Geminids' tangible origin is closer to home. They are offshoots of a rocky space traveler in our solar system, as we shall see.

How Can I Enjoy the Geminids?

You will have little time to wait to start spotting the Geminids—known as one of the best meteor showers on planet Earth. They’re here already, technically, running from Nov. 19 to Dec. 24. This time annually, Earth hits a patch of the solar system strewn with debris from a bouldery traveler. As we head into the countdown to Christmas, the light show in the sky produced by the thickest part of that cosmic debris field only intensifies.
The Geminids will reach their peak on Dec. 13 at exactly 2:27 p.m. EST. Yes, that’s the middle of the day in North America, so you'll have to wait until the radiant rises with Castor at around 9 p.m. And straight away there will be shots darting from that direction. One needn’t look directly at the radiant to find them; they'll whip outward from it. Rather, after nightfall and into the wee hours of Dec. 14, you should kick back and relax. Take in as much sky as possible, for they could sputter up anywhere over the horizon.

As fortune would have it, the new moon falls on Dec. 12, meaning a slight, young sliver of crescent moon awaits us when the Geminids peak, presenting optimal dark conditions for meteor viewing. Ideally, find a vantage point far from city lights—a country cottage for a Christmas getaway perhaps? Grab a cup of hot chocolate, pull up a lawn chair, snuggle up with a blanket—or possibly a loved one—and gaze up at the stars. Weather permitting, without too much snow or cloud cover, you’re sure to spot a meteor or two!

Or maybe a lot more than a few. In fact, the Geminids’ zenithal hourly rate, according to EarthSky, is estimated to be 120 meteors per hour. You might not see that many, yet sighting 50 or more on a dark night around peak period isn’t unrealistic. Geminid meteors burn slower and last much longer than most, which usually vanish in a twinkling, making them far easier to enjoy. They are known for being bold, bright, and white, rivaling the famous Perseids as one of the year’s best showers.

cont...




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Posts: 39399 | Location: SC Lowcountry/Cape Cod | Registered: November 22, 2002Reply With QuoteReport This Post
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Hey, I am a Gemini! Do I get in free ?





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Posts: 55282 | Location: Henry County , Il | Registered: February 10, 2004Reply With QuoteReport This Post
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Free! All you have to do is look up. ^^^




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Posts: 39399 | Location: SC Lowcountry/Cape Cod | Registered: November 22, 2002Reply With QuoteReport This Post
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