What is a lenticular (S0) galaxy?
A) A galaxy with a lot of gas and dust and no particular structure
B) A spiral galaxy with fuzzy and poorly formed spiral arms
C) A galaxy with a smooth brightness profile,lacking the central bulge and disk of a spiral galaxy
D) A galaxy with a disk and central bulge like a spiral galaxy,but with no spiral arms
Correct Answer:
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Q55: What is an elliptical galaxy?
A) A galaxy
Q56: The Hubble classification for a very flat
Q57: What is a rich cluster of galaxies?
A)
Q58: What is the Tully-Fisher relation?
A) The more
Q59: Which of the following types of galaxies
Q61: A starburst galaxy appears to be a
Q62: Which single major problem perhaps concerns astronomers
Q63: The rotation curve of a galaxy is
Q64: In order for gravitational lensing of a
Q65: The fact that quasars can be detected
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