New Year's Fireworks from a Shattered Comet
 
2017 is beginning with fireworks.
 
No, not those fireworks.
 
We're talking about a lightshow from shattered comet 2003 EH1.
 
https://www.youtube.com/watch?v=IMkxh50fo80
 
According to the International Meteor Organization and other forecasters,
Earth will pass through a stream of debris from the comet on January 3, 2017,
producing a shower of meteors known as the Quadrantids.
 
The Quadrantid meteor shower is one of the most intense annual meteor showers,
typically producing meteors at a rate of more than 100 per hour from a point
in the sky near the North Star, also known as the shower's radiant.
 
The 2017 Quadrantids are expected to peak around 1400 UT - or around 6 am
PST.  The timing favors western parts of North America and islands across the
Pacific. The peak of the Quadrantids is brief, typically lasting no more than
an hour or so, and it does not always occur at the forecasted time. Observers
everywhere are encouraged to be alert for meteors throughout the dark hours of
January 3.
 
"Extra motivation to go out and view the Quadrantids is provided by the
shower's reputation for producing spectacular fireballs," says Brian Day of
NASA's Ames Research Center. "Not only are these fireballs memorable visual
events, but also they are of scientific interest. Anyone can participate in a
citizen science effort by reporting his or her observations. `Fireballs in the
Sky' is a free app that makes this easy. It is made available by Curtin
University in partnership with NASA."
 
Although Quadrantids can be numerous, they are observed less than other well
known meteor showers. One reason is weather. The shower peaks in early January
when northern winter is in full swing. Storms and cold tend to keep observers
inside. Another reason is brevity. The shower doesn't last long, a few hours
at most. Those willing to brave the elements while keeping their eyes on the
skies could be rewarded with a spectacular show!
 
The source of the Quadrantid meteor shower was unknown until December 2003
when Peter Jenniskens of the NASA Ames Research Center found evidence that
Quadrantid meteoroids come from 2003 EH1, an "asteroid" that is probably a
piece of a comet that broke apart some 500 years ago. Earth intersects the
orbit of 2003 EH1 at a perpendicular angle, which means we quickly move
through any debris. That's why the shower is so brief.
 
Quadrantid meteors take their name from an obsolete constellation, Quadrans
Muralis, found in early 19th-century star atlases between Draco, Hercules, and
Bootes. It was removed, along with a few other constellations, from crowded
sky maps in 1922 when the International Astronomical Union adopted the modern
list of 88 officially recognized constellations. Although the Quadrantids now
fly out of the constellation Bootes, the meteors kept their old name.
 
Quadrantid meteors: they come from a shattered comet and an extinct
constellation.
 
That sounds like they are worth a look.  Bundle up for chilly meteor viewing
on January 3.  It's a great way to start the New Year.
 
For more news about backyard astronomy, stay tuned to science.nasa.gov
 
 
Regards,
 
Roger

--- DB 3.99 + W10 (1607)
 * Origin: NCS BBS - Houma, LoUiSiAna (1:3828/7)