Video/Photo: Asteroid 2005 YU55 to come close to Earth tonight

Asteroid 2005 YU55 photographed on Monday at 3.6 lunar distances or 1.38 million km from Earth

A gigantic asteroid will approach Earth to within 0.85 lunar distances Tuesday (8 Nov 2011), the closest visit to Earth of an object this size in the last 30 years. The rock size is estimated at that of an aircraft carrier.

The nearest approach will take place at 6:28 p.m. ET when 2055 YU55 passes within 323,000 kilometers of Terra, according to NASA calculations.

The U.S. agency ranked YU55 as a “potentially hazardous object.”

If the asteroid collided with Earth, it would allegedly generate a 4,000 megaton explosion and a 7.0-magnitude quake. If it crashes into the ocean, it might lead to a 25-meter high tsunami within 100 kilometers of the collision spot, the experts said.

However, Asteroid 2005 YU55, poses no danger to our lively planet, according to NASA’s Near Earth Object Program.
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NASA is gonna analyse the asteroid using the Goldstone radar antennas located in California’s Mojave Desert. Goldstone antennas are very sensitive radio telescopes employed to examine quasars, mapping of planets and comets.

Researchers wish to reconstruct 2005YU55’s shape with a resolution of about 13 feet (4 meters) using the radio antennas. Some days of high resolution investigations are also planned at the Arecibo Observatory in Puerto Rico.

This is an important opportunity for amateur astronomers to directly spot an asteroid employing optical telescopes.

Video: 2005YU55 -a historical approach to Earth (November 8, 2011)