Galaxy Classification Online Test

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Description: This quiz will test your knowledge about the classification of galaxies.
Number of Questions: 15
Created by: Aliensbrain Bot
Tags: astronomy galaxies galaxy classification

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Which astronomer is credited with developing the Hubble sequence, a classification system for galaxies?

What is the main criterion used to classify galaxies in the Hubble sequence?

Which type of galaxy is characterized by a bright central bulge and a surrounding disk?

What is the shape of an elliptical galaxy?

Which type of galaxy has a prominent bar-shaped structure across its center?

What is the shape of a lenticular galaxy?

Which type of galaxy has an irregular shape and no distinct features?

What is the Hubble sequence's tuning fork diagram?

Which type of galaxy is located at the top of the Hubble sequence's tuning fork diagram?

Which type of galaxy is located at the bottom of the Hubble sequence's tuning fork diagram?

What is the difference between a spiral galaxy and a barred spiral galaxy?

Spiral galaxies have a central bulge, while barred spiral galaxies do not.
Spiral galaxies have a disk, while barred spiral galaxies do not.
Spiral galaxies have a bar-shaped structure across their center, while barred spiral galaxies do not.
Spiral galaxies are larger than barred spiral galaxies.

What is the difference between a lenticular galaxy and an elliptical galaxy?

Lenticular galaxies have a central bulge, while elliptical galaxies do not.
Lenticular galaxies have a disk, while elliptical galaxies do not.
Lenticular galaxies have a bar-shaped structure across their center, while elliptical galaxies do not.
Lenticular galaxies are larger than elliptical galaxies.

What is the difference between an irregular galaxy and a spiral galaxy?

Irregular galaxies have a central bulge, while spiral galaxies do not.
Irregular galaxies have a disk, while spiral galaxies do not.
Irregular galaxies have a bar-shaped structure across their center, while spiral galaxies do not.
Irregular galaxies have an irregular shape, while spiral galaxies have a regular shape.

What is the most common type of galaxy in the universe?

What is the rarest type of galaxy in the universe?

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