Ver o UY55 ao vivo

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Alguns elementos sobre o 2005 YU55 

Size ~400 m in diameter

Mass 90 – 100 million metric tonnes
Closest distance to Earth on Nov. 8 325,000 km at 23:29 UTC (18:29 ET)
Closest distance to Moon on Nov. 9 239,867 km at 07:20 UTC (02:20 ET)
Speed at flyby ~49,400 km/h (~30,700 mph)
Spin period ~18 hours
Orbital period around Sun 1.22 years
Perihelion distance 0.65 AU (97,240 km)
Aphelion distance 1.63 AU (243,850 km)