Asteroid 2005 YU55, Size of Modern Aircraft Carrier, Set to Buzz Earth

From FoxNews: Asteroid 2005 YU55, Size of Modern Aircraft Carrier, Set to Buzz Earth
Even those of us without access to the world's biggest radio telescopes still have a chance to spot 2005 YU55 as it zips past Earth. The asteroid will be brightest in the sky a few hours after its closest approach and should be visible with decent equipment under clear, dark skies, experts say.

A skywatcher's guide to 2005 YU55

"You should be able to spot the asteroid with your telescope if it has an aperture of at least 6 to 8 inches," Alan MacRobert of Sky & Telescope magazine said in a statement.

2005 YU55 will move quickly, covering about 70 degrees of sky in just 10 hours or so, according to Sky & Telescope. (Your clenched fist held at arm's length measures about 10 degrees.) It will also be relatively dim, so skywatchers will probably need some help to find the space rock.

But help is out there. The asteroid's coordinates at any given time can be looked up at JPL's Solar System Dynamics website. http://ssd.jpl.nasa.gov/