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Science 8 > Astronomers and stars > Flashcards

Astronomers and stars Flashcards

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1
Q

was a mathematician, astronomer, and geographer in Alexandria

A

Ptolemy

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2
Q

Polish astronomer who promulgated the now accepted theory that the earth and the other planets move around the sun

A

Copernicus

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3
Q

Danish Astronomer

A

Brahe, Tycho

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4
Q

German Astronomer

A

Kepler

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5
Q

Italian physicist and astronomer

A

Galileo

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6
Q

English Mathematician and scientist

A

Newton, Isaac

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7
Q

American Astronomer of the twentieth century

A

Hubble, Edwin

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8
Q

The Great Bear, the most prominent northern constellation, containing the seven stars the form the Big Dipper

A

Ursa major

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9
Q

The Little Bear, the northernmost constellation, containing the stars that form the Little Dipper

A

Ursa minor

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10
Q

The hunter, a constellation lying on the celestial equator between Canis Major and Taurus

A

Orion

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11
Q

The Great dog, a southern constellation between Puppis and Orion

A

Canis major

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12
Q

is a constellation in the northern sky, named after the vain queen Cassiopeia.

A

Cassiopeia

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13
Q

a very large star of high luminosity and low urface temperature

A

Red giant

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14
Q

is a stellar remnant composed mostly of electronic matter

A

White dwarf

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15
Q

is any star that is fusing hydrogen in its core

A

Main-sequence star

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16
Q

a star that suddenlyi increases greatly in brightness because of a catastrophic explosion that ejects most of its mass

A

Supernova

17
Q

a region of space having a gravitational field so intense that no matter or radiation can escape

A

Black hole

18
Q

the effect whereby the position or direction of an object appears to differ when viewed from different positions

A

Parallax

19
Q

a unit of astronomical distance equivalent to the distance that light travels in one year

A

Light-year

20
Q

the polestar or North star, a star of the second magnitude situated close to the north pole of heavens

A

Polaris (the star)

Science 8 (6 decks)

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