- astronomical unit of length
- Техника: а. е. д., астрономическая единица длины
Универсальный англо-русский словарь. Академик.ру. 2011.
astronomical unit of length
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Astronomical unit — This article is about unit of length. For the full system of units, see Astronomical system of units. 1 astronomical unit = SI units 149.60×10^6 km 149.60×10^9 m Astronomical units 4.8481 … Wikipedia
astronomical unit — n. Astron. a unit of length based on the mean distance of the earth from the sun, c. 149.6 million km ( c. 93 million mi): light travels this distance in c. 8.3 minutes: abbrev. AU … English World dictionary
astronomical unit — Astron. a unit of length, equal to the mean distance of the earth from the sun: approximately 93 million miles (150 million km). Abbr.: AU [1900 05] * * * ▪ unit of measurement Comparative data for the Sun, planets, and other solar system… … Universalium
Unit of length — A unit of length is a way of measuring length or distance.Common units of length in the International System of Units (SI) are: * metre and its multiples, such as centimetre or kilometre Non SI units of length include: * fermi (fm) (= 1… … Wikipedia
astronomical unit — (ua or au or AU) a unit of distance used by astronomers to measure distances in the Solar System. One astronomical unit equals the average distance from the center of the Earth to the center of the Sun (mathematically, it is the length of the… … Dictionary of units of measurement
Astronomical Unit — noun 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) (Freq. 1) • Syn: ↑AU • Hypernyms: ↑astronomy unit * * *… … Useful english dictionary
astronomical unit — noun Date: 1903 a unit of length used in astronomy equal to the mean distance of the earth from the sun or about 93 million miles (150 million kilometers) … New Collegiate Dictionary
astronomical unit — astronom′ical u′nit n. astron. a unit of length, equal to the mean distance of the earth from the sun: approximately 93 million miles (150 million km) Abbr.: AU • Etymology: 1900–05 … From formal English to slang
Astronomical units of length — Astronomers use a number of different length units for different objects. The length unit used is typically determined by two criteria: #the unit should create manageable numbers #the unit should be easily derivable from observationThe distances… … Wikipedia
astronomical unit (AU) — Length of the semimajor axis of Earth s orbit around the Sun, 92,955,808 mi (149,597,870 km), often defined simply as the average distance from Earth to the Sun. Direct measurement through the parallax method cannot be used for accurate… … Universalium
Length — is the long dimension of any object. The length of a thing is the distance between its ends, its linear extent as measured from end to end. This may be distinguished from height, which is vertical extent, and width or breadth, which are the… … Wikipedia
