What Is the Basic Shape of a Spiral Galaxy

question 114

Multiple Choice

What is the basic shape of a spiral galaxy?

• A) round, flat disk with long lanes of stars that curve outward from a round, nuclear region bulging out of the disk
• B) round, flat disk with long lanes of stars that curve outward from the center of the galaxy
• C) approximately spherical with long lanes of dark dust clouds curving through it in a spiral pattern
• D) round, thin disk of uniform brightness with its edges bent up and down into a spiral shape

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