By: Mike Wall
Published: 06/13/2012 05:29 PM EDT on SPACE.com

An asteroid the size of a city block is set to fly by Earth Thursday (June 14), and you may be able to watch it happen live.

The near-Earth asteroid 2012 LZ1, which astronomers think is about 1,650 feet (500 meters) wide, will come within 14 lunar distances of Earth Thursday evening. While there's no danger of an impact on this pass, the huge space rock may come close enough to be caught on camera.

That's what the team running the Slooh Space Camera thinks, anyway. The online skywatching service will train a telescope on the Canary Islands on 2012 LZ1 and stream the footage live, beginning at 8:00 p.m. EDT Thursday (0000 GMT Friday).

You can watch the asteroid flyby on Slooh's website, found here: http://events.slooh.com/

2012 LZ1 just popped onto astronomers' radar this week. It was discovered on the night of June 10-11 by Rob McNaught and his colleagues, who were peering through the Uppsala Schmidt telescope at Siding Spring Observatory in Australia.