Galaxies

Spiral Galaxy

• definition: a galaxy in which the stars and gas clouds are concentrated mainly in one or more spiral arms.
• in my own words: a galaxy that is a spiral

Galaxy

• definition: a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
• in my own words: system of stars

Elliptical Galaxy

• definition: An elliptical galaxy is a type of galaxy having an approximately ellipsoidal shape and a smooth, nearly featureless image
• in my own words: galaxy that looks like an egg

Irregular Galaxy

• definition: An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy.
• in my own words: galaxy with no shape

Dwarf Galaxy

• definition: A dwarf galaxy is a small galaxy composed of about 100 million up to several billion stars
• in my own words: a galaxy that is small

Milky Way Galaxy

• definition: the galaxy of which the sun and the solar system are a part and which contains the myriads of stars that create the light of the Milky Way.
• in my own words: galaxy with the solar system and sun