astronomy Flashcards

1
Q

Ptolemy

A

Roman mathematician,

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2
Q

Copernicus

A

Renaissance polymath

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3
Q

Brahe, Tycho

A

Danish astronomer

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4
Q

Kepler, Johannes

A

German astronomer

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5
Q

Galileo

A

Italian astronomer, physicist and engineer, sometimes described as a polymath.

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6
Q

Newton, Isaac

A

English mathematician, physicist, astronomer, alchemist, theologian, and author

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7
Q

Hubble, Edwin

A

American astronomer

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8
Q

Ursa major

A

a constellation in the northern sky

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9
Q

Ursa minor

A

a constellation located in the far northern sky.

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10
Q

Orion

A

a prominent constellation located on the celestial equator and visible throughout the world.

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11
Q

Canis major

A

a constellation in the southern celestial hemisphere.

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12
Q

Cassiopeia

A

constellation in the northern sky named after the vain queen Cassiopeia

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13
Q

Red giant

A

a dying star in the final stages of stellar evolution.

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14
Q

White dwarf

A

what stars like the Sun become after they have exhausted their nuclear fuel.

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15
Q

Main-sequence star

A

any star that has a hot, dense core which fuses hydrogen into helium to produce energy

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16
Q

Supernova

A

When a star goes boom

17
Q

Black hole

A

Something so dense that its gravity consumes everything and not even light can escape

18
Q

Parallax

A

the apparent displacement or the difference in apparent direction of an object as seen from two different points not on a straight line with the object.

19
Q

Light-year

A

distance light travels in a year

20
Q

Polaris

A

a star in the northern circumpolar constellation of Ursa Minor