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Distinguish the hierarchical relationships between planets and other astronomical bodies relative to solar system, galaxy, and

universe, including distance, size, and composition.

Any of the eight large heavenly bodies revolving about the sun

Any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night

The earth's natural satellite, orbiting the earth at a mean distance of 238,857 miles

Small celestial bodies made up of rocks and medals that move around between Mars and Jupiter

A spherical celestial body revolving about the sun, similar to a planet but not large enough to

gravitationally clear its orbital region of most or all other celestial bodies

A cloud of interstellar gas and dust.

The sun together with all the planets and other bodies that revolve around it.

A large system of stars held together by the gravitational pull of the sun. The

system is isolated from similar systems by vast regions of space

A small celestial body made up of ice that releases dust and gas

A disked-shaped galaxy made of a lot of gas, dust, and newly forming stars

Do not have regular shapes. They are full of gas and dust

and are also bright due to the formation of new stars.

Galaxies shaped like an ellipse, made up of gas,

dust, and mostly old stars.

150,000 LIGHT YEARS

The gravitational pull of the sun keeps the planets on their orbit

The asteroid belt separates the inner planets from the

outer planets.

EQUALS TO5.9 TRILLION MILES

ASTRONOMICAL UNIT

93 MILLION MILES