1
what color do the hotter states appear on the H-R diagram
blue
which planet is called the red planet?
Mars
whats the hottest planet in space?
Venus
What force keeps planets in orbit around the sun?
Gravity
what does the H-R diagram plot
plot of luminosity vs temp of stars
how many planets are in the solar system
8
whats the name of the Galaxy we live in?
The Milky Way
what do astronauts ride in to get to space?
Rocket
which axis of the H-R diagram represents a stars brightness
the vertical axis (the y axis)
whats the smallest planet in the solar system
Mercury
Which planet is closest to the sun?
Mercury
What do we call a group of stars forming a picture?
Constellation
what is a place that not even gravity can escape
black hole
if light is 4 light-years away how long did it take to reach us?
4 years
Which planet is famous for its rings?
Saturn
what planet spins on its side
Uranus
what is the closest star to earth
the sun
Whats the largest moon in our solar system?
Ganymede
Whats another name for the moon?
Luna
What do we call a rock that burns up when entering Earth's atmosphere?
A meteor