________ created epicycles or smaller circles planets move around the sun when in retrograde.
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Aristarchus
________ was the first Greek to propose that the solar system is heliocentric.
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Keplers first law
________ is that planets move in oval or elliptical orbits with the sun as the focus.
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Eccentricity
________ is the measurement of how elongated a closed circle is and is measured from the foci (points) to the length of the major axis.every ellipse has two points.
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Astronomy
________ is the study of the universe.
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Perihelion
________ is the closest distance from the Sun.
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Ancient Greeks
________ believed in a geocentric model of the solar system.
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Copernicus
________ created the first detailed heliocentric model.
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Aristotle
________ was the first to conclude that earth is shaped like a sphere.
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retrograde movement
The ________ is an apparent westward drift.
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geocentric model
In the ________ the moon, sun and known planets revolve around the sun in a perfectly circular orbit.
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Keplers second law
________ states a planet divers the same area of space in the same amount of time no matter where it is in its orbit.
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eccentricity
All ellipses have something called ________.
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Copernicus
________ was also the first to propose: that earth was a planet, earth orbits the sun annually, and earth rotates on a daily basis.
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Copernicus was also the first to propose
that earth was a planet, earth orbits the sun annually, and earth rotates on a daily basis
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