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The Planets - Educational Astronomy Posters
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educational posters > science > astronomy > planets < social studies
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A planet is generally understood to be a large object in orbit around a star, there is no scientific definition of "planet". The ancient astronomers (observers of stars) noted how some lights moved in relation to other lights and named them "planets"- the Greek word for "wanderer".
The Planets and Solar System posters for educational teaching resources in the science and social studies classrooms, home schoolers.
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Mercury, classified as a terrestial planet, is the planet nearest to the Sun in the Solar System. The name Mercury comes from the Roman God Mercurius, the speedy messenger, which describes the rapid orbiting of the Sun in 88 Earth days.
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Venus, a terrestial planet, is the second closest planet to the Sun with an orbit of 224.7 days. The planet is one of the brightest objects in the sky and has been observed since prehistoric times. The name Venus is for the Roman goddess of love, the ancient Babylonians called it Ishtar.
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Earth, the third planet orbiting the Sun, is the largest terrestial planet in the Solar System.
Earth is the only place in the universe where life is known to exist.
• more Earth posters
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Mars, the fourth planet from the Sun, is named after the Roman god of war. The planet Mars is also referred to as the "Red Planet" because of its reddish appearance as seen from Earth.
Astronomer Giovanni Schiaparelli mistook what appeared as straight lines to be canels.
• more Mars posters
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Jupiter is the fifth planet from the Sun and the largest planet (two and a half times as massive as all of the other planets in our solar system combined) within the Solar System. Jupiter is classified as a gas giant along with Saturn, Uranus and Neptune.
The Romans named the planet after their god Jupiter (also called Jove), the Greek equilavent of Zeus.
• more Jupiter posters
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Saturn, the sixth planet from the Sun and the second largest planet in the Solar System, is classified as a gas giant. The most distinct feature of Saturn is a system of rings.
Saturn is named after the Roman god Saturnus,(the Greek Kronos, father of Zeus) and lends its name to Saturday.
• more Saturn posters
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Uranus, named after the ancient Greek deity of the sky, is the seventh planet from the Sun. Uranus is the third largest and fourth most massive planet in the solar system.
Because it is so dim, ancient astronomers didn't recognize Uranus as a planet; it was Sir William Herschel and his sister Caroline that made Uranus the first planet discovered using a telescope in 1781.
• Uranus with 5 Moons poster
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Neptune, the eighth planet from the Sun in the Solar System, is the fourth largest planet by diameter, and the third largest by mass (Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus).
While Galileo observed Neptune in 1612, he thought it was a fixed star, so it was by astronomer Le Verrier's calculations that Neptune became the first planet discovered by mathematical prediction, 9-23-1846.
The planet Neptune is named after the Roman god of the sea and its astronomical symbol is a stylized version of Poseidon's Trident. Poseidon is the Greek name for the god of the sea; a trident, or three teeth, is three pronged spear, similar to a fisherman's 'gig' in the US.
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Pluto, from its discovery in 1930 by astronomer Clyde W. Tombaugh (b. 2-4-1906, IL / d. 1-17–1997, NM) until 2006, was considered the nineth planet in the Solar System. Now Pluto is classified as a dwarf planet, the largest object in the region called the Kuiper belt.
The name Pluto comes from the Roman god of the underworld, the Greek's called their god of the underworld Hades.
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Planets Chart -
©Spaceshots
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Hubble- The Planets Poster - ©Spaceshots
• more Hubble Telescope posters
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Millennium Planet Poster
Description: “On December 16, 1999, most newspapers and television news programs carried the announcement of the first extrasolar planet to be discovered visually, 55 light years from Earth. It was variously named “Tau Boo,” “Planet 2000,” or the “Millennium Planet.” It orbits close to the star Tau Bootis and is a Jupiter-like gas giant 1000 times more massive the Earth. One side of the planet always faces its star, which is somewhat more massive than our Sun. The temperature of the planet may reach 1700 C, and the planet may exhibit intense storms as its atmosphere streams from the hot day side to the cold night side. The planet may also exhibit intense aurorae and host a volcanic moon.”
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Astronomy- Anatomy of the Universe
• Human Anatomy posters
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Solar System Wall Poster NASA
1 Sun + 9 Planets + 57 Moons + 10,000 Asteroids + 100 Billion Comets
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The Moon - International Edition
• moon posters
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