12-1 Flashcards
1
Q
define orbit
A
path of an object in space as it moves around an other because of garavity
2
Q
define Solar system
A
The sun and various smaller planets
3
Q
Define Galaxy
A
group of million/Billion of stars held together by their own gravity
4
Q
Define Universe
A
everything (space and all the matter and energy in it)
5
Q
Define Constellation
A
group of stars that form a pattern in the sky
6
Q
why cant you see the whole constellation at once
A
earth blocks half of the space from your veiw
7
Q
Why do stars seem to not move
A
They are so for away it is difficult to tell
