Bus-Size Asteroid Gives Earth Super-Close Shave Today, Second in 2 DaysSPACE.com
by Mike Wall, Senior Writer 5 hours ago
The recently discovered asteroid will come closer to the Earth than our Moon's orbit.For the second day in a row, a space rock is going to zip close by Earth within the orbit of the moon, and you can watch the encounter live online.
The 33-foot-wide (10 meters) near-Earth asteroid 2014 EC will come within 34,550 miles (55,600 kilometers) of Earth's surface this evening (March 6) — just 14 percent of the distance between our planet and the moon, which is about 239,000 miles (385,000 km) on average. You can see a
video of asteroid 2014 EC's orbit around the sun here.
The online Virtual Telescope Project will attempt webcast today's asteroid flyby liv. You can watch
live webcast of asteroid 2014 EC live on Space.com beginning at 2:30 p.m. EST (1930 GMT), courtesy of the Virtual Telescope Project. Or you can go directly to the project's website:
http://www.virtualtelescope.eu/webtv/2014 EC, which was discovered just Tuesday (March 4), is about half as wide as the asteroid that exploded over Russia in February 2013, injuring about 1,500 people. There is no danger that 2014 EC will hit Earth on this pass, researchers stress; the chances that it will ever strike the planet are currently estimated at 1 in 2.7 million.
While 2014 EC will come extremely close to Earth, it's not a great skywatching target. The asteroid won't be visible through binoculars or small telescopes, said Don Yeomans, manager of NASA's Near-Earth Object program office at the Jet Propulsion Laboratory in Pasadena, Calif.
The orbits shown in this diagram color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecl"Moderately sized telescopes if you know where to look — yes," Yeomans told Space.com via email. "The asteroid will reach an apparent magnitude of about 13.6 near closest approach."
The flyby of 2014 EC follows closely on the heels of another space rock encounter. On Wednesday (March 6), the 100-foot-wide (30 m) asteroid 2014 DX110 zoomed by Earth, passing inside the orbit of the moon at a range of 217,000 miles (350,000 km).
Such back-to-back flybys are pretty special, though they can't exactly be called rare events, Yeomans said.
"For small asteroids, one would expect a flyby of the Earth, to within the moon's distance, about every two weeks," he said.
Astronomers think that more than 1 million asteroids cruise through space in Earth's neighborhood. To date, just 10,600 have been discovered and named.
http://news.yahoo.com/bus-size-asteroid-gives-earth-super-close-shave-125427098.html
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