Washington, Feb 14: Astronomers have discovered the first near-Earth triple asteroid, which is hardly 7 million miles from our planet.
Known as 2001 SN263, the asteroid, with three bodies orbiting each other, was discovered by astronomer Michael C. Nolan and his colleagues using the sensitive radar telescope at Cornell University's Arecibo Observatory in Puerto Rico.
The main, central body is spherical with a diameter of roughly 1.5 miles (2 kilometers), while the larger of the two moons is about half that size. The smallest object is about
1,000 feet across, or about the size of the Arecibo telescope.