en

astronomical unit

1

Terminological databases

Kosmoseteaduse ja -tehnoloogia terminibaas

ID 575954 Last modified 10.10.2025
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Domain astronomy
astronomical unit
au
  • pikkusühik, mis on võrdne Maa ja Päikese vahelise keskmise kaugusega (ligikaudu 150 miljonit kilomeetrit)
    Good to know
    • 1 aü = 149 597 871 km
  • unit of length, equal to the average Sun-Earth distance (of about 150 million kilometres)
    Good to know
    • The astronomical unit is typically used for stellar system scale distances, such as the size of a protostellar disk or the heliocentric distance of an asteroid.
astronoomiline ühik
Usage examples
  • Inimese loodud tehisobjektidest on kõige kaugemale jõudnud automaatjaam Voyager 1 - 2022. aasta maikuuks üle 155 astronoomilise ühiku ehk umbes 23,3 miljardi kilomeetri kaugusele.
astronomical unit
Usage examples
  • The astronomical unit is used primarily for measuring distances within the Solar System or around other stars.
au symbol

Metroloogia terminibaas

ID 573390 Last modified 07.05.2024
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Domain metrologyunits of measurement
astronoomiline ühik preferred
astroühik
au
astronomical unit preferred
AU
  • pikkuse SI ühikutest sõltumatult määratletud ühik
  • conventional value approximately equal to the mean value of the distance between the Sun and the Earth
astronoomiline ühik preferred
astroühik
au abbreviation, symbol
astronomical unit preferred
AU abbreviation

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