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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Icarus
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INFOTEXT
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1992-09-02
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355b
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In astronomy, an Apollo asteroid 1.5 km/1 mi
in diameter, discovered 1949. It orbits the
Sun every 409 days at a distance of 28
million-186 million km/28 million-300 million
mi (0.19-2.0 astronomical units). It is the
only asteroid known to approach the Sun
closer than does the planet Mercury. In 1968
it passed 6 million km/4 million mi from the
Earth.