astronomical unit wikipedia - EAS
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Alles weergeven op Wikipediahttps://en.wikipedia.org/wiki/Astronomical_unitThe astronomical unit (symbol: au, or AU or AU) is a unit of length, roughly the distance from Earth to the Sun and equal to 150 million kilometres (93 million miles) or 8.3 light-minutes. The actual distance from Earth to the Sun varies by about 3% as Earth orbits the Sun, from a maximum … Meer weergeven
A variety of unit symbols and abbreviations have been in use for the astronomical unit. In a 1976 resolution, the International Astronomical Union (IAU) had used the symbol A to denote a length equal to the astronomical … Meer weergeven
Earth's orbit around the Sun is an ellipse. The semi-major axis of this elliptic orbit is defined to be half of the straight line segment that … Meer weergeven
The book On the Sizes and Distances of the Sun and Moon, which is ascribed to Aristarchus, says the distance to the Sun is 18 to 20 times the distance to the Moon, whereas the … Meer weergeven
With the definitions used before 2012, the astronomical unit was dependent on the heliocentric gravitational constant, that is the product … Meer weergeven
The unit distance A (the value of the astronomical unit in metres) can be expressed in terms of other astronomical constants:
where G is the Meer weergeven• Williams, D.; Davies, R. D. (1968). "A radio method for determining the astronomical unit". Monthly Notices of the Royal Astronomical Society. 140 (4): 537. Bibcode Meer weergeven
Wikipedia-tekst onder CC-BY-SA-licensie- https://simple.wikipedia.org/wiki/Astronomical_unit
The astronomical unit (AU) is a unit of length derived from the Earth's orbit. It is the average distance the Earth gets from the Sun on the long axis of the ellipse. Its definition is: the length …
- Unit of: length
- 1 au, ua, or AU in ...: ... is equal to ...
- Symbol: au, ua, or AU
- https://en.wikipedia.org/wiki/Astronomical_system_of_units
The astronomical unit of time is the day, defined as 86400 seconds. 365.25 days make up one Julian year. The symbol D is used in astronomy to refer to this unit.
Wikipedia · Tekst onder CC-BY-SA-licentie- Geschatte leestijd: 7 min.
Astronomical unit - Wikipedia
https://sco.wikipedia.org/wiki/Astronomical_unit15.813 × 10 −6: An astronomical unit (abbreviatit as au; ither abbreviations that are sometimes uised include ㍳, a.u. an ua) is a unit o length nou defined as exactly 149 597 870 700 or …
- Unit o: length
- 1 au or ua in ...: ... is equal tae ...
- Seembol: au or ua
- https://en.wikipedia.org/wiki/Astronomy
Astronomy (from the Greek ἀστρονομία from ἄστρον astron, "star" and -νομία -nomia from νόμος nomos, "law" or "culture") means "law of the stars" (or "culture of the stars" depending on the translation).Astronomy should not be confused …
Astronomical unit - Wikipedia
https://so.wikipedia.org/wiki/Astronomical_unitUnit conversions 1 au in ..... is equal to ... Halbeega SI 1.4960 × 10 11 m halbeega Maraykanka 9.2956 × 10 7 mi other astronomical 4.8481 × 10 −6 parsec units 1.5813 × 10 −5 ly
Astronomische eenheid - Wikipedia
https://nl.wikipedia.org/wiki/Astronomische_eenheidAstronomische eenheid. De astronomische eenheid (AE, internationaal au of ua) is een afstandsmaat die vrijwel gelijk is aan de gemiddelde afstand tussen de Aarde en de Zon, …
- https://de.wikipedia.org/wiki/Astronomische_Einheit
Die Astronomische Einheit ist ein Längenmaß in der Astronomie: Laut Definition misst eine AE exakt 149 597 870 700 Meter. Das ist ungefähr der mittlere Abstand zwischen Erde und …
- https://en.wikipedia.org/wiki/Albedo
Albedo (/ æ l ˈ b iː d oʊ /; from Latin albedo 'whiteness') is the measure of the diffuse reflection of solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident …
- https://en.wikipedia.org/wiki/Day
In the International System of Units (SI), a day not an official unit, but is accepted for use with SI. A day, with symbol d, is defined using SI units as 86,400 seconds; the second is the base unit …
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