Galaxies

What is the system called that is used to classify galaxies?

• Hubble's Classification System
• New General Catalog
• Messier's Classification System
• Galaxy Classification System

A group of stars that form a galaxy is called what?

• cluster

• planet

• universe

• gravity

Our galaxy is called the

• Earth Nebula
• The Hubble Galaxy
• The Milky Way
• The Snickers

Galaxies are composed of (best answer)

• stars
• stars and gas
• stars, dust, and gas
• stars, dust, and gas held together by gravity

The Milky Way Galaxy is a 

• spiral
• lenticular
• elliptical 
• irregular

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular
• Irrational

What type of galaxy is this?

• Spiral
• Elliptical
• Irregular 
• Irrational

Distance measurement used by astronomers for distant objects.

• Kilometers
• Light Years
• Miles
• Light Seconds

What is not a galaxy?

• Optical Galaxy
• Spiral Galaxy
• Elliptical Galaxy
• Irregular Galaxy

How many stars are in a galaxy.

• millions or billions
• thousands
• hundreds
• Ten