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- Astronomical_unit abstract "An astronomical unit (abbreviated au; sometimes AU,[citation needed] a.u.[citation needed] and ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally, each distance was measured through observation, and the au was defined as their average, half the sum of the maximum and minimum, making the unit a kind of medium measure for Earth-to-Sun distance. It is now defined more precisely as 149597870700 metres (about 93 million miles).The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System. However, it is also a fundamental component in the definition of another critical unit of astronomical length, the parsec.".
- Astronomical_unit wikiPageExternalLink Units.234.0.html.
- Astronomical_unit wikiPageExternalLink measuring.
- Astronomical_unit wikiPageExternalLink intro.htm.
- Astronomical_unit wikiPageExternalLink www.transitofvenus.org.
- Astronomical_unit wikiPageID "1210".
- Astronomical_unit wikiPageRevisionID "606528241".
- Astronomical_unit hasPhotoCollection Astronomical_unit.
- Astronomical_unit inunits "ly".
- Astronomical_unit inunits "m".
- Astronomical_unit inunits "mi".
- Astronomical_unit inunits "pc".
- Astronomical_unit name "astronomical unit".
- Astronomical_unit quantity Length.
- Astronomical_unit standard Astronomical_system_of_units.
- Astronomical_unit standard Non-SI_units_mentioned_in_the_SI.
- Astronomical_unit symbol "au".
- Astronomical_unit units International_System_of_Units.
- Astronomical_unit units "imperial & US units".
- Astronomical_unit units "other astronomical".
- Astronomical_unit units "units".
- Astronomical_unit subject Category:Celestial_mechanics.
- Astronomical_unit subject Category:Units_of_length.
- Astronomical_unit subject Category:Units_of_measurement_in_astronomy.
- Astronomical_unit type Abstraction100002137.
- Astronomical_unit type DefiniteQuantity113576101.
- Astronomical_unit type Measure100033615.
- Astronomical_unit type UnitOfMeasurement113583724.
- Astronomical_unit type UnitsOfMeasureInAstronomy.
- Astronomical_unit comment "An astronomical unit (abbreviated au; sometimes AU,[citation needed] a.u.[citation needed] and ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year.".
- Astronomical_unit label "Astronomical unit".
- Astronomical_unit label "Astronomische Einheit".
- Astronomical_unit label "Astronomische eenheid".
- Astronomical_unit label "Jednostka astronomiczna".
- Astronomical_unit label "Unidad astronómica".
- Astronomical_unit label "Unidade astronômica".
- Astronomical_unit label "Unità astronomica".
- Astronomical_unit label "Unité astronomique".
- Astronomical_unit label "Астрономическая единица".
- Astronomical_unit label "وحدة فلكية".
- Astronomical_unit label "天文単位".
- Astronomical_unit label "天文單位".
- Astronomical_unit sameAs Astronomická_jednotka.
- Astronomical_unit sameAs Astronomische_Einheit.
- Astronomical_unit sameAs Αστρονομική_μονάδα.
- Astronomical_unit sameAs Unidad_astronómica.
- Astronomical_unit sameAs Unitate_astronomiko.
- Astronomical_unit sameAs Unité_astronomique.
- Astronomical_unit sameAs Satuan_astronomi.
- Astronomical_unit sameAs Unità_astronomica.
- Astronomical_unit sameAs 天文単位.
- Astronomical_unit sameAs 천문단위.
- Astronomical_unit sameAs Astronomische_eenheid.
- Astronomical_unit sameAs Jednostka_astronomiczna.
- Astronomical_unit sameAs Unidade_astronômica.
- Astronomical_unit sameAs m.0n0_.
- Astronomical_unit sameAs Q1811.
- Astronomical_unit sameAs Q1811.
- Astronomical_unit sameAs Astronomical_unit.
- Astronomical_unit wasDerivedFrom Astronomical_unit?oldid=606528241.
- Astronomical_unit isPrimaryTopicOf Astronomical_unit.