GALAXIES

TYPES OF GALAXIES

SPIRAL GALAXY

Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars known as the bulge. Our galaxy, the Milky Way Galaxy, is a barred spiral galaxy.

ELLIPTICAL GALAXY

Elliptical galaxies have an approximately ellipsoidal shape and a smooth, nearly featureless image.

IRREGULAR GALAXY

An irregular galaxy is a galaxy that does not have a distinct regular shape. Irregular galaxies do not fall into any of the classes of the Hubble sequence, and they are usually chaotic to look at, with no nuclear bulge or spiral arm structure

PECULIAR GALAXY

A peculiar galaxy is a galaxy of unusual size, shape, or composition. Unlike irregular galaxies, they do have a shape, but it is generally unique to itself.

WANT TO PRACTICE AND LEARN MORE?

Youtube:

Galaxies, Part 1: Crash Course Astronomy #38:

https://www.youtube.com/watch?v=I82ADyJC7wE

Galaxies, Part 2: Crash Course Astronomy #39:

https://www.youtube.com/watch?v=_O2sg-PGhEg

The Milky Way: Crash Course Astronomy #37

https://www.youtube.com/watch?v=tj_QPnO8vpQ

Kahoot:

https://play.kahoot.it/v2/?quizId=352ee7a7-ad19-4c5e-9b7b-a475e63f1a6d

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