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Astronomical Measurements. Astronomical Measurements. Astronomical Unit (AU). Astronomical Measurements. Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun. Astronomical Measurements.
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Astronomical Measurements • Astronomical Unit (AU)
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly)
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second. Good for measuring between stars.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second. Good for measuring between stars. • Kiloparsec (kpc)
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second. Good for measuring between stars. • Kiloparsec (kpc) = 1000 pc.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second. Good for measuring between stars. • Kiloparsec (kpc) = 1000 pc. Good for measuring within the Milky Way or Local Group of galaxies.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second. Good for measuring between stars. • Kiloparsec (kpc) = 1000 pc. Good for measuring within the Milky Way or Local Group of galaxies. • Megaparsec (Mpc)
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second. Good for measuring between stars. • Kiloparsec (kpc) = 1000 pc. Good for measuring within the Milky Way or Local Group of galaxies. • Megaparsec (Mpc) = 1 million pc.
Astronomical Measurements • Astronomical Unit (AU) - A distance unit based on the average distance of the Earth from the Sun ≈ 93 million miles. Good for measuring between planets. • Light Year (ly) - A unit of distance equal to the distance light travels in one year ≈ 6 trillion miles. Good for measuring between stars. • Parsec (pc) ≈ 3.26 ly or 19.5 trillion miles. It is the distance at which an object would have a parallax of one arc second. Good for measuring between stars. • Kiloparsec (kpc) = 1000 pc. Good for measuring within the Milky Way or Local Group of galaxies. • Megaparsec (Mpc) = 1 million pc. Good for measuring between galaxies.