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The astronomical unit AU is a unit of length approximately equal to the distance from the Earth to the Sun. The currently accepted value of the AU is 149 597 870 691 \xb1 30 metres
about 150 million kilometres or 93 million miles.

1 AU = 149 597 870.691 \xb1 0.030 km ≈ 92 955 807 miles ≈ 8.317 light minutes ≈ 499 light-seconds
1 light-second ≈ 0.002 AU
1 gigameter ≈ 0.007 AU
1 light-minute ≈ 0.120 AU
1 microparsec ≈ 0.206 AU
1 terameter ≈ 6.685 AU
1 light-hour ≈ 7.214 AU
1 light-day ≈ 173.263 AU
1 milliparsec ≈ 206.265 AU
1 light-week ≈ 1212.84 AU
1 light-month ≈ 5197.9 AU
1 light-year ≈ 63,241 AU
1 parsec ≈ 206,265 AU

5 AU = 747990000 km