Categories: Geminid meteor Meteor Shower

December Meteor Shower 2013 Tonight

CAPE CANAVERAL, Florida — The 2013 Geminid Meteor Shower, which NASA says begins December 4 and runs through December 17, will peak on the nights of December 13th and 14th, 2013.  The Geminid Meteor Shower is the most intense meteor shower of the year and can be seen from almost any point on Earth.

When to watch tonight’s meteor shower:

The 2013 Geminid meteor shower will begin around 9 p.m. every evening at the viewer’s respective local time.  The meteor shower will be the most intense and directly overhead during the hours of 1 to 3 a.m.  

A near full moon coincides with the Geminid meteor shower peak this year. But the Geminds are so bright that they should still put on a spectacular show.

Where to watch tonight’s meteor shower:

Geminid meteors stream from a point called “the radiant” in the constellation Gemini.  They will rise in the east around 9 p.m. and be directly overhead at 2 a.m.  The meteor shower sets in the western sky just before sunrise.

According to NASA, the Geminids are generally regarded as one of the best annual meteor showers.  But before the mid-1800’s there were no Geminids, or at least not enough of them to attract attention.

Geminids Located In Gemini Constellation

The first Geminid shower suddenly appeared in 1862, surprising sky watchers who saw 15 or so shooting stars each hour.

Most meteor showers come from comets, which spew ample meteoroids for a night of ‘shooting stars.’   The Geminids are different.  The parent is not a comet but a weird rocky object named 3200 Phaethon that sheds very little dusty debris—not nearly enough to explain the Geminids.

“Of all the debris streams Earth passes through every year, the Geminids’ is by far the most massive,” says NASA astronomer Bill Cooke. “When we add up the amount of dust in the Geminid stream, it outweighs other streams by factors of 5 to 500.”

3200 Phaethon was discovered in 1983 by NASA’s IRAS satellite and promptly classified as an asteroid.

“If 3200 Phaethon broke apart from asteroid Pallas, as some researchers believe, then Geminid meteoroids might be debris from the breakup,” speculates Cooke. “But that doesn’t agree with other things we know.”

Researchers have looked carefully at the orbits of Geminid meteoroids and concluded that they were ejected from 3200 Phaethon when Phaethon was close to the sun—not when it was out in the asteroid belt breaking up with Pallas. The eccentric orbit of 3200 Phaethon brings it well inside the orbit of Mercury every 1.4 years. The rocky body thus receives a regular blast of solar heating that might boil jets of dust into the Geminid stream.


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