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An AU is the mean distance between the Earth to the Sun. As the Earth's orbit is slightly elliptical, the distance between the planet and the Sun varies. It varies from about 0.983 AU (at perihelion) and 1.016 AU (at aphelion).

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Q: Is Earth always precisely 1 AU from the sun?
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Related questions

How far is earth from the sun AU?

The Earth is one AU from the Sun.


What is the distance from sun to Earth in Au's?

An AU, or astronomical unit, is defined as the average distance from Earth to the Sun. Therefore, the distance from Earth to the Sun equals 1 AU.


How close is Pluto?

That's a difficult question to answer precisely. Pluto's average distance from the Sun is 39.4 AU. (An AU is an Astronomical Unit and is defined as the average distance between the center of the Earth and the center of the Sun.) One AU equals 92,955,807 million miles, or about 93 million miles, but Pluto's distance from the Sun ranges from 29.7 to 49.3 AU. So, depending on the orbits of Pluto and Earth, the distance between the two could be anywhere from 28.7 AU (Earth directly between Pluto and Sun when Pluto is closest to the Sun) to 50.3 AU (Earth directly opposite Sun from Pluto when Pluto is furthest from the Sun). However, keep in mind that an AU is an average and that Earth's actual orbit varies anywhere from 91 to 94.5 million miles. Hope that helps.


How far from the sun is earth in AU and miles?

1 AU, or astronomical unit, is the distance between the earth and sun, making earth 1 AU away from the sun. That is about 93 million miles


How far. is neptune?

About 30 AU from the Sun. Since Earth is 1 AU from the Sun, Neptune can be between 29-31 AU from the Earth.


What is this distance from earth to the sun in atomic units?

The distance to the sun is one astronomical unit (AU). The earth-sun distance is the basis for the AU.


95.7 AU means Kilometers To Sun?

One AU is the average distance from Earth to Sun - approximately 150 million kilometers.One AU is the average distance from Earth to Sun - approximately 150 million kilometers.One AU is the average distance from Earth to Sun - approximately 150 million kilometers.One AU is the average distance from Earth to Sun - approximately 150 million kilometers.


The distance of the earth from the sun in AU?

Earth is 150 million kilometers, 93 million miles, or 1 AU from the Sun.


Distance between sun and earth in au?

One AU


How many million kilometers and au's is earth from the sun?

Earth averages 149,600,000 kilos from the Sun. The average distance from Earth to Sun is defined as 1 AU (Astronomical Unit)


If the sun is 1 AU what is the radius of Antares on AU?

The Earth is 1 AU from the Sun, not the diameter. See related question.


The earth is moved from 1 au from the sun to 2 au from the sun how is the apparent brightness of the sun as seen from earth affected?

It appears to be one quarter as bright.