* Astronomy

The 40 - 90 metre wide asteroid 2013 SR will make a close pass (27.2 lunar distances, 0.0698 AU), travelling at 5.66 km/second, to the Earth-Moon system on the 12th October 2013 @ 08:29 UT ±00:01. 

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).