Space Chapter 7

Any object that exists in space. i.e. moon, planets, stars.

A scientist who studies astronomy.

A group of stars that form a distinctive pattern in the sky

the distance that light travels in one year. 9.5 X 10*12 km

The magnitude of a star that we observe if the star were 32.6 light years from Earth

The brightness of a star as seen on Earth

A smaller group of stars that form a pattern within constellations or multiple constellations.

• They are the two stars in the big dipper when followed lead to Polaris or the North Star
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• The monthly progressions in the moons appearance that results in different portions of the moon sunlit side being visible from Earth
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When the full moon passes into Earth's shadow.

• an object that orbits one or more stars and is not a star itself. is spherical and doesn't share an orbit with another object.
• The inner planets include Mercury, Venus, Earth, Mars.
• Then an asteroid belt separates them.
• Jupiter, Saturn, Uranus, and Neptune are the outer planets.

The average distance between Earth and the Sun about 150 x 10*6. Also know as AU.

The average distance between the sun and the object that is orbiting it.

Model of the solar system stating that the Earth is the center of all planetary motion. With the planets and sun moving in perfect circles.

Model of the solar system that in which the Sun is the center and all the planets revolve around it.

An object that is made up rocky material,ice, and gas. It comes from Kuiper Belt and Oort Cloud.

It is an object in space and ranges in a speck of sand to 500 km. They usually come from the asteroid belt between Mars and Jupiter.

a piece of rock moving through space

A meteoroid that hits the earth's atmosphere and burns up.

Is a meteor that is large enough to pass through the earth's atmosphere and reach the ground with being totally burned up