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Astronomical unit
/ɐstɹənˈɒmɪkəl jˈuːnɪt/
/ɐstɹənˈɑːmɪkəl jˈuːnɪt/
AUAstronomical unit
01
astronomische Einheit, Astronomen-Einheit
a unit of measurement equal to the average distance between the Earth and the Sun, approximately 149.6 million kilometers
Example
An astronomical unit measures distances within our solar system.
Earth's orbit spans about one AU.
Neptune is approximately 30 AU away.
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