fast chapter Flashcards

1
Q

constellations

A

Many names are given to these group of stars by ancient cultures remain today

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2
Q

radio telescope

A

collects and amplifies radio waves

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3
Q

light- year

A

is the distance light travels in one year

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4
Q

spectroscope

A

uses a prism or diffraction grating so separate light into its components wave lengths

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5
Q

nebula

A

stars form from a large clouds of gas, ice, dust

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6
Q

main sequence

A

stars included the broad band of stars from hot,and bright stars

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7
Q

giant

A

a star where the temp increases

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8
Q

white dwarf

A

stars outer layer into space leaves hot dense core

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9
Q

supernova

A

huge collaspe realsed energy sand fast nuetrons

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10
Q

neutron star

A

star expoldes it leaves behind a ball of neutron

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11
Q

black hole

A

a area in space thats black and pulls with gravity

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12
Q

photo sphere

A

layer of sun emits light into space

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13
Q

sunspots

A

dark cool areas where suns magnetic field is weakened

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14
Q

how do constellations get their names

A

characters from stories tools animals

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15
Q

what constellation represents the great hunter

A

Orion

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16
Q

what are Orion´s hunting dogs names

A

Cani major Canis minor

17
Q

what does canis major mean

A

big dog

18
Q

what does canis minor mean

A

little dog

19
Q

how many optical telescopes are there

A

2

20
Q

what does a refracting telescope use

A

convex lens

21
Q

what does a reflecting telescope use

A

mirror

22
Q

what are the two names of the optical telescopes

A

reflecting telescope and refracting telescope

23
Q

why are space telescopes better than ground based telescope

A

doesn’t have many interruptions (clouds, pollution)

24
Q

what are the names of the two space telescopes that are in space

A

Chandra X-ray observatory, Spitzer Space telescope

25
Q

what are the three thing a spectroscope can determine

A

surface temp, chemical composition whether its moving from or toward earth

26
Q

what are blue light waves

A

waves that detect stars closer to earth, waves show up blue and is more frequent

27
Q

what are red light waves

A

stars father away from earth waves are more wide spread and appears red on the wave lengths