what H is the closest asteroid to the earth?
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A near-Earth object (NEO) is any small Solar System body whose orbit can bring it into proximity with Earth. By convention, a Solar System body is a NEO if its closest approach to the Sun(perihelion) is less than 1.3 astronomical units (AU).
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What the closest asteroid to Earth?
On March 18, 2004, LINEAR announced that a 30 m (98 ft) asteroid, 2004 FH, would pass the Earth that day at only 42,600 km (26,500 mi), about one-tenth the distance to the Moon, and the closest miss ever noticed until then. They estimated that similar-sized asteroids come as close about every two years.
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