More cards in this set

Card 16

Front

16. If the suns diameter is 100x bigger than earth's, what is the Milkyways diameter?

Back

Preview of the front of card 16

Card 17

Front

17. How far away is the Milkyway from the nearest galaxy?

Back

Preview of the front of card 17

Card 18

Front

18. What do stars emit?

Back

Preview of the front of card 18

Card 19

Front

19. How can you tell how hot a star is?

Back

Preview of the front of card 19

Card 20

Front

20. How can you workout how far away a star is?

Back

Preview of the front of card 20

Card 21

Front

21. What is a parallax?

Back

Preview of the front of card 21