Objects such as planets, moons, & stars that are located in the sky or in space.

Group of interacting or interdependent parts forming a complex whole; for example, all the factors or variables in an environment, or all the planetary bodies revolving around a star.

Sun together with the group of planets & other celestial bodies that are held by its gravitational attraction & revolve around it.

Force that causes objects with mass to attract one another.

Gravitationally curved path of an object around a point in space.

Luminous celestial body around which Earth & other planets revolve & from which they receive heat & light.

Ball of gas in space that produces its own light & heat.

Any of the large celestial bodies that revolve around the Sun in the solar system.

Any of the rocky, terrestrial planets of Mercury, Venus, Earth, & Mars, whose orbits are inside the asteroid belt.

Any of the planets Jupiter, Saturn, Uranus, & Neptune, whose orbits lie beyond the asteroid belt.

Large & small rocks or metallic masses orbiting the Sun; made up of materials similar to those that formed the planets.

Region between the inner & outer planets where most asteroids orbit around the Sun.

Natural chunk of rock or dust existing outside of Earth’s atmosphere.

Small object that enters Earth’s atmosphere from space & burns due to friction, thus emitting light.

Remains of meteoroids that strike the surface of Earth or the Moon.

Something that orbits around another object; for example, a moon orbiting a planet or a human-made object orbiting Earth.

Celestial body that revolves around a planet.

Celestial body of ice, dust, & rock with an elongated & elliptical orbit.

Glowing, heated dust & vaporized gas that surrounds the icy comet nucleus as it travels near the Sun; solar winds cause heated gases to stream out of the nucleus & form a tail that points away from the Sun.

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CELESTIAL OBJECTS

6.11A CELESTIAL OBJECTS

Term	Definition
CELESTIAL OBJECTS	Objects such as planets, moons, & stars that are located in the sky or in space.
SYSTEM	Group of interacting or interdependent parts forming a complex whole; for example, all the factors or variables in an environment, or all the planetary bodies revolving around a star.
SOLAR SYSTEM	Sun together with the group of planets & other celestial bodies that are held by its gravitational attraction & revolve around it.
GRAVITY	Force that causes objects with mass to attract one another.
ORBITAL PATH	Gravitationally curved path of an object around a point in space.
SUN	Luminous celestial body around which Earth & other planets revolve & from which they receive heat & light.
STAR	Ball of gas in space that produces its own light & heat.
PLANET	Any of the large celestial bodies that revolve around the Sun in the solar system.
INNER PLANET	Any of the rocky, terrestrial planets of Mercury, Venus, Earth, & Mars, whose orbits are inside the asteroid belt.
ROCKY	Made of rocks.
TERRESTRIAL	Earth-like; "Terra-" = Earth
OUTER PLANET	Any of the planets Jupiter, Saturn, Uranus, & Neptune, whose orbits lie beyond the asteroid belt.
ASTEROIDS	Large & small rocks or metallic masses orbiting the Sun; made up of materials similar to those that formed the planets.
ASTEROID BELT	Region between the inner & outer planets where most asteroids orbit around the Sun.
METEROID	Natural chunk of rock or dust existing outside of Earth’s atmosphere.
METEOR	Small object that enters Earth’s atmosphere from space & burns due to friction, thus emitting light.
METEORITES	Remains of meteoroids that strike the surface of Earth or the Moon.
SATELLITE	Something that orbits around another object; for example, a moon orbiting a planet or a human-made object orbiting Earth.
MOON	Celestial body that revolves around a planet.
COMET	Celestial body of ice, dust, & rock with an elongated & elliptical orbit.
COMA	Glowing, heated dust & vaporized gas that surrounds the icy comet nucleus as it travels near the Sun; solar winds cause heated gases to stream out of the nucleus & form a tail that points away from the Sun.

Created by: trauberk

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