Universe Components 1.2 Flashcards

1
Q

Star

A

A sphere of plasma that emits light and other radiation

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2
Q

Planet

A

An astronomical object orbiting a star that is large enough to be rounded by gravity

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3
Q

Moon

A

An astronomical object that orbits a planet

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4
Q

Asteroid

A

An astronomical body orbiting star that doesn’t have enough gravity become rounded it is an irregular shape

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5
Q

Comet

A

An astronomical object with an elliptical orbit around to start releasing gas as a nearest star

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6
Q

Meteor

A

Any astronomical object that enters a planets atmosphere

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7
Q

Meteorite

A

A small astronomical object to reach is a planet surface and impacts

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8
Q

Solar system

A

The collection of astronomical bodies in orbit around a star

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9
Q

Galaxy

A

A Astronomical collection of stars and nebulae held together by gravity

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10
Q

Nebula

A

Any collection of astronomical gases and small debris or dust

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11
Q

Quasar

A

Extremely bright core of the galaxy containing a black hole and the electromagnetic radiation it emits

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12
Q

Pulsar

A

Star that emits dual beams of radiation in short bursts

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13
Q

Black hole

A

An astronomical space that is such high gravity no light can escape

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14
Q

Terrestrial planets

A

Mercury Venus Earth and Mars. Composed mostly of rock.

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15
Q

Gas giants

A

Jupiter Saturn Uranus and Neptune. composed mostly of gas

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16
Q

Types of stars

A

0-hyper giants (brightest)

VII- white dwarf (least bright)