Sky Science Flashcards by Jade Morter | Brainscape

Flashcards in Sky Science Deck (19)

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1

what does it mean to emit light

produce or make there own light

2

what six objects in space emit light

1.sun
2.stars
3.meteros only when in earths atmosphere
4.galaxies
5.emition nebula
6.arora borealis

3

how does the sun create light

when hydrogen is converted to helium through a nuclear fusion

4

galaxies are made up of

made up of billion stars

5

what are nebula

clouds of glowing dust and gases

6

what are meteors

meteoroids are when they enter the atmosphere and burn up because of friction

7

what is arora borealis

solar winds, that are caught in the earths magnetic field

8

5 objects in space that reflect light

1.moons
2.planets
3.comets
4. astroroeds
5. artificial sat alights

9

whats a comets

are made up of rocks, ice, dust

10

what are asteroids made up of

rock, and medal

11

what is a well known artificial satalight

a huble space telescope

12

what are constellation

are pictures that you can make out of stars, star patterns

13

how many constellations are recognized of the international astronomical union

88

14

unofficial star groups are called

asterism

15

what are constellations that can be seen year around called

sercompolo constellations

16

the point that constellations circle. around is called

polaris

17

earths axis is tilted at what degree

23.45

18

how many days does for to revolve around the sun

365.25 days

19

why do we have seasons

the earths tilt