Multiple Choice
The results of the 1920 Shapley-Curtis debate on the nature of "spiral nebulae" were inconclusive.What was really needed to provide an answer to the question was
A) a better idea of the size of the Milky Way Galaxy.
B) a better understanding of interstellar extinction.
C) distances to spiral nebulae.
D) a clearer idea of star formation.
Correct Answer:
Verified
Correct Answer:
Verified
Q110: Elliptical galaxies have<br>A) spiral arms rotating clockwise.<br>B)
Q111: What is galactic cannibalism,and what does it
Q112: Lenticular galaxies are sometimes referred to as<br>A)
Q113: A standard candle should have what characteristic?<br>A)
Q114: How are clusters of galaxies spread throughout
Q116: What is the Eddington limit for any
Q117: What evidence is there for considerable extra
Q118: As much as 90% of the matter
Q119: What is the likely fate of our
Q120: What does a spiral galaxy look like