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2010 AL30: Watch out for low-flying asteroids

Posted by Emily Lakdawalla on 2010/01/12 11:52 CST

In less than 24 hours, a newly discovered asteroid known as 2010 AL30 will be zipping past Earth at an altitude of approximately a third the Earth-Moon distance. There's no chance it'll hit us, but it's generating a lot of excitement in the community of amateur and professional near-Earth asteroid observers.

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Triple asteroid 1994 CC rotation animation

Posted by Emily Lakdawalla on 2009/08/06 10:39 CDT

From the "just plain cool" department. I love animations of planetary images and I love radar images of asteroids -- so this animation is doubly cool.

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Astronomers Revise Torino Scale Asteroid Advisory System

Posted by A.J.S. Rayl on 2005/04/20 03:25 CDT

Astronomers have revised the Torino scale, the color-coded advisory system to assess the threat of asteroids and other near-Earth objects (NEOs) to make it easier for the public to understand.

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Close Your Left Eye, Then Your Right: Simultaneous Observations of Asteroid 4179 Toutatis from Two Chilean Telescopes Demonstrate Parallax

Posted by Emily Lakdawalla on 2004/09/29 12:00 CDT

This morning, asteroid 4179 Toutatis was so close to Earth that simultaneous observations from two telescopes in the same country could show parallax that is obvious even to the least experienced observer. The two telescopes belong to The European Southern Observatory and are located at La Silla and Paranal in Chile

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Very Close Approach by Asteroid 4179 Toutatis: It's Not a Crisis, It's an Opportunity

Posted by Emily Lakdawalla on 2004/09/27 12:00 CDT

On Wednesday, September 29, Earth will dodge a cannonball: the Near-Earth Asteroid known as 4179 Toutatis will buzz by at a distance only four times the distance from the Earth to the Moon -- about one and a half million kilometers, or about a million miles. But, as the wisdom goes, "close" only counts in horseshoes and hand grenades; Toutatis' flyby will have no effect whatsoever on us.

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