* Astronomy

2005 NX55 Earth Impact Risk Summary
Torino Scale (maximum) 0 Palermo Scale (maximum) -4.21 Palermo Scale (cumulative) -4.15 Impact Probability (cumulative) 3.1e-08 Number of Potential Impacts 87	Vimpact 27.15 km/s Vinfinity 24.75 km/s H 21.9 Diameter 0.140 km Mass 3.8e+09 kg Energy 3.4e+02 MT all above are mean values weighted by impact probability
Analysis based on 14 observations spanning 1.1343 days (2005-Jul-11.16281 to 2005-Jul-12.297115)

The 140 metre wide asteroid 2005 NX55 will pass the Earth-Moon system on the 6th January, 2011.

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