a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)
Astronomical Unit, AU
| ... is a Kind of: Astronomical Unit, AU |
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 | astronomical unit (measure – in astronomy) |
| Astronomy: Astronomical Units and Constants |
| Johann Gottfried Galle (German astronomer) |
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 | What is the astronomical unit less than you au? |
| How many kilometres is 1 Astronomical Unit? |
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 | Definition. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
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Mentioned in
- astronomical unit (measure – in astronomy)
- Astronomy: Astronomical Units and Constants
- Johann Gottfried Galle (German astronomer)
- Sir David Gill (Scottish astronomer)
- sun (in astronomy)
- Earth rotation and orbital motion (solar system, sun and planets)
- comet (in astronomy)
- solar system (in astronomy)
- Sun, Moon, and Earth
- Astronomical constant
- Solar mass
- C/1760 A1
- Unit of length
- Astronomical distance
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