Chapter 12 Vocab Flashcards

0
Q

Astronomers

A

A scientist who studies the universe

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1
Q

Universe

A

Everything In space

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2
Q

Refracting telescope

A

A lens that gathers light

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3
Q

Reflecting telescope

A

A telescope that uses mirrors to gather light

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4
Q

Observatory

A

A place that astronomers study the sky

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5
Q

Radio telescope

A

A telescope that sends out radio waves

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6
Q

Satellite

A

An object that circles another object in space

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7
Q

Space probe

A

A unmanned craft sent up to space (they do not orbit planets)

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8
Q

Astronomical unit

A

A unit to measure how far the earth is to the sun

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9
Q

Constellation

A

A group of stars

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10
Q

Galaxy

A

A group of stars dust and gases held together by gravity

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11
Q

Magnitude

A

A way to measure the brightness of a star

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