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

18
Q

what does canis minor mean

A

little dog

19
Q

how many optical telescopes are there

20
Q

what does a refracting telescope use

A

convex lens

21
Q

what does a reflecting telescope use

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
what are the three thing a spectroscope can determine
surface temp, chemical composition whether its moving from or toward earth
26
what are blue light waves
waves that detect stars closer to earth, waves show up blue and is more frequent
27
what are red light waves
stars father away from earth waves are more wide spread and appears red on the wave lengths