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Leonids 2000 Special Report
By Robert Roy Britt
Senior Science Writer
posted: 03:34 pm ET
22 November 2000

Untitled Document

LEONID NEWS & VIEWS

What About Next Year?
An early look at 2001

Leonid Meteor Shower 2000: The Three Waves
Episodes lasted several hours each, with outbursts of 150 to 450 meteors per hour.

The Leonid Meteor Shower -- What People Saw
What people around the world saw, and how the watched.

Your Views
SPACE.com members report what they saw.


Leonid Meteor Shower: Sowing the Seeds of Life?
Fingerprints of organic matter were found in this 1999 Leonid fireball. See full movie.


The Leonids From Space

Check out this composite satellite shot!

Full Leonids 2000 Preview
The Leonids are shifty. In 1833, they scared the bejesus out of people. What's in store this year? A better forecast, at least.

How to Watch
A celestial event that doesn't even require a telescope!

More details
Forecasts for the 2000 Leonids from the International Meteor Organization.

Special Report: 1999 Leonids
Find out what happened last year, and browse the images.

The annual Leonid shower peaked early Friday and Saturday mornings, November 17-18. This Special Report serves as an archive to all of our coverage -- from what was expected to what occurred.

18 November 2000 results
Activity began to increase November 17 at 10:00 p.m. UT, according to the International Meteor Organization (IMO). Starting around 1:30 a.m. UT on the 18th, a rate of 200 meteors per hour was observed. This rose to a peak of about 300 per hour around 3:45 a.m. UT.

Individual reports indicate during a second peak, for which the Eastern United States was the prime viewing location, the hourly rate jumped to 120 to 180, and higher in brief stretches.

Short bursts produced reports of an hourly rate as high 450.

"Despite the intense moonlight the Leonids put on an excellent display for observers in Europe and Eastern North America," said Robert Lunsford, visual program coordinator of the American Meteor Society. "Although skies were mostly cloudy on Friday morning some observers in eastern North America saw rates at 30 to 40 an hour."

Saturday morning, rates were as high as 2-3 per minute in Europe and eastern North America, Lunsford told SPACE.com.

"Many commented on seeing quick bursts of 5-6 Leonids within a matter of seconds," he said.

This reporter witnessed 6 meteors between 2:50 and 3:00 a.m. EST (7:50-8:00 UT) Saturday. All but one were very bright. Two of these left nice vapor trails that were visible for a second or so after the meteor was done. All this in the bright lights of Philadelphia, and with about a third of the sky obscured by trees.

17 November 2000 results
Preliminary analysis indicates that rates in Europe reached 45 visible meteors per hour at 4:00 a.m. UT (Universal Time) Friday morning, November 17, according to the International Meteor Organization. Rates as high as 100 per hour were reported on the Canary Islands.

On the U.S. East Coast, observers also told of around 100 meteors per hour between 1:45 and 3:30 a.m. EST on the 17th, with a possible peak rate of 150. The organization cautioned that only a handful of reports contributed to these estimates, and more analysis would need to be done to confirm the numbers.


What about next year?
Scientists were eager to learn if this year's forecast was accurate. The answer seem clear. And, along with an accurate 1999 forecast, confidence is now boosted that the forecast for next year will be on target as well. And for 2001, the forecast calls for a Leonid storm, unlike anything seen in recent years.

"After seeing these results it seems certain that the America's and the Far East will be treated to a grand display without interfering moonlight in 2001," Lunsford told SPACE.com.

OTHER METEOR INFO
UT, or Universal Time, is five hours ahead of Eastern Standard Time, and 4 hours ahead of the East Coast during Daylight Savings Time.

 

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