What factors are important when trying to classify a spiral galaxy?
A) amount of dust and gas in the galaxy
B) structure of the spiral arms
C) size of the central region
D) All of the these are important.

Question

Quizplus · Accepted Answer

All of the listed factors are important when trying to classify a spiral galaxy. The amount of dust and gas in the galaxy affects its color and ability to form new stars. The structure of the spiral arms can help determine whether it is a barred spiral or a normal spiral. The size of the central region is also a key factor in classification. Therefore, all of these factors are important when classifying spiral galaxies.

What Factors Are Important When Trying to Classify a Spiral