Historical Models of the Solar System

Uranus was the first planet discovered with a telescope. It was discovered on March 13, 1781 by a British astronomer. What was the name of that Astronomer?

• Yuji Hyakutake

• Sir William Herschel

• Isaac Newton

Mathematics helped scientists discover the planet Neptune. Astronomers predicted Neptune’s existence based on irregularities in Uranus’s orbit. Neptune was discovered by telescope almost exactly where it was mathematically predicted to be. When was Neptune discovered.

• September 23, 1846

• September 23, 1856

• September 23, 1866

In this model, Earth and the other planets orbit the sun.

• geocentric model

• heliocentric model

• Solar System

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NGSS.MS-ESS1-2

These model uses Earth as the center, are called Earth-centered.

• geocentric model

• heliocentric model

• universe model

He adopted Ptolemy’s idea that planetary paths should be perfect circles.

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NGSS.HS-ESS1-4

His model placed the moon, sun, planets, and stars on a series of circles that surrounded Earth. Who is he?

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NGSS.MS-ESS1-1

is reported to have proposed a heliocentric model of the solar system.

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NGSS.MS-ESS1-2

NGSS.MS-PS2-4

He formulated three principles. The first law states that planetary orbits are ellipses with the sun at one focus. The second law states that planets move faster in their orbits when closer to the sun. The third law relates the distance of a planet from the sun to the time it takes to go once around its orbit.

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Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

was a German mathematician and astronomer who found that ellipses fit best for the structure of the solar system.

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was a scientist who approached questions in the fashion that today we call scientific methods.

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NGSS.MS-ETS1-3

NGSS.MS-LS1-5

NGSS.MS-PS1-2