Saturday's Draconid meteors may be no-see-ums

Oct 05, 2011 By MARCIA DUNN , AP Aerospace Writer
This Oct. 31, 1998 photo illustration provided by the National Optical Astronomy Observatory/ Association of Universities for Research in Astronomy/National Science, shows the Comet Giacobini-Zinner, a fairly frequent visitor to the inner solar system, was captured by the Kitt Peak 0.9-meter telescope in Tucson, Ariz. North is up with east to the left. Since the comet was moving across the sky fairly quickly, and since color images are made by combining successive exposures through three different filters, a conventional combination would have either a streaked comet or a set of colored dots for each star. To avoid this, the complete sequence of images, lasting over ninety minutes, was specially processed. All frames for one color were combined with filtering that removed the moving comet: this stars-only image was subtracted from each comet frame, and the comet frames were registered and summed with further filtering to remove any residuals. The two images, with stars only and with comet only, were then added together to produce a single-color image in which neither the comet nor the stars was trailed. These three frames were then united in the final color picture, shown here. (AP Photo/National Optical Astronomy Observatory/ Association of Universities for Research in Astronomy/National Science

(AP) -- Heads-up, meteor fans. As many as 750 meteors an hour are expected Saturday, as Earth travels through streams of dust and ice from Comet Giacobini-Zinner. The comet passes through the inner solar system every seven years.

But the timing for viewing them in the United States is terrible. These Draconid are expected to peak between 3 and 5 p.m. EDT, so the sun will obscure everything.

NASA space weatherman Bill Cooke suggests popping outside and taking a look once it's dark. You might get lucky if forecasters' timing is off.

And while the meteors will be falling during nighttime in Europe, Africa and the Middle East, a nearly is expected to dull the spectacle there.

"The moon sucks. It's messed up meteor showers this year. Next year will be better," said Cooke, team leader of NASA's Environment Office at Marshall Space Flight Center in Huntsville, Ala.

It just so happens that this year's meteor showers are falling at or near the time of full moons.

Because the Draconids move relatively slowly - 12 miles per second - they're faint and the moonlight "really tends to wash them out," Cooke said in a phone interview.

The Draconids get their name from the constellation Draco, the Dragon.

In 1933 and 1946, the Draconid outbursts were major - observers reported an astounding rate of 20,000 shooting stars an hour. An Irish astronomer described the 1933 episode like a flurry of snowflakes.

The next Draconid outburst after this one will be in 2018.

If you miss this weekend's Draconids, you can catch the Orionids on Oct. 22 - remnants from Halley's Comet, expected to number 20 meteors an hour.

Then there are the Leonids in mid-November - with as many as 100 meteors an hour.

"Unfortunately, the moon will interfere with them as well," Cooke said. "We just don't have any good luck, moonwise, this year."

Explore further: Space debris expert warns of increasing CubeSat collision risk

More information:
NASA: http://www.nasa.gov/offices/meo/home/index.html

International Meteor Organization: http://www.imo.net/draconids2011

not rated yet
add to favorites email to friend print save as pdf

Related Stories

Draconid meteor outburst

Oct 05, 2011

On October 8th Earth is going to plow through a stream of dust from Comet 21P/Giacobini-Zinner, and the result could be an outburst of Draconid meteors.

Orionids Meteor Shower Lights Up the Sky

Oct 21, 2009

Earth is currently passing through a stream of debris from Halley's Comet, lighting up the night sky with the "fireworks" of the annual Orionids meteor shower.

The 2009 Leonid Meteor Shower

Nov 10, 2009

This year's Leonid meteor shower peaks on Tuesday, Nov. 17th. If forecasters are correct, the shower should produce a mild but pretty sprinkling of meteors over North America followed by a more intense outburst ...

Leonid Meteor Shower Peaks Wednesday

Nov 12, 2010

The Leonid meteor shower best viewing this year will be in the two to three hours before dawn on Nov. 17 and 18, according to the editors of StarDate magazine.

Meteors from Halley's comet

Apr 28, 2011

Looking for an adventure? Get up in the wee hours of the morning May 6th and head out into the country, far from the city lights. You won't be alone. The birds will be up and singing about the coming dawn, ...

Recommended for you

NASA rocket has six minutes to study solar heating

1 hour ago

(Phys.org) —On Sept. 30, 2014, a sounding rocket will fly up into the sky – past Earth's atmosphere that obscures certain wavelengths of light from the sun—for a 15-minute journey to study what heats ...

Cassini watches mysterious feature evolve in Titan sea

16 hours ago

(Phys.org) —NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a large hydrocarbon sea on Saturn's moon Titan. The feature covers an area of about 100 square miles (260 square ...

MOM eyes the limb of Mars after historic arrival

23 hours ago

India's maiden interplanetary voyager, the Mars Orbiter Mission (MOM) has transmitted a breathtaking new image eyeing the limb of Mars and its atmosphere against the blackness of space.

User comments : 0