Show:
Comets
Asteroids
Stars
Star systems
Galaxies
100
What are comets often refered to?
Dirty snowballs
100
What are asteroids also called?
Minor planets
100
What is the biggest star?
The sun
100
What is a star system?
A small group of stars that orbit each other
100
What are the three types of galaxies?
Spiral,elliptical, and irregular
200
What are comets mostly made out of?
Ice and dust
200
Where do asteroids stay?
In the rings between Jupiter and mars
200
What is a star created of?
Plasma and gas
200
What is 4/5 of the light we see at night.
Two stars grouped together
200
What kind of galaxy is the milky way?
A spiral galaxy
300
What is the tail of a comet called
The coma
300
How big can asteroids get?
About as large as Ceres(583 miles across)
300
How many stars are in the milky way?
More than 100 billion stars
300
What is a group of two stars called
A binary system
300
How many stars are in the milky way?
At least 100 billion
400
How long can a coma be
About 1 million miles
400
How do asteroids rotate?
In elliptical orbits
400
How many stars can you see in a clear night with the naked eye?
About 3,000
400
Who discovered the first star system?
Galileo
400
What are the outer spinning parts of a galaxy called?
An arm
500
How are comets named?
After their discoverers
500
What is the average surface temperature of an asteroid?
-100 degrees F
500
Why are stars different colors?
Their temperatures
500
In what constalation what the first star system found?
The big dipper
500
What do scientists say are in the middle of a galaxy?
A black whole