Multiple Choice
Why was Herschel's strategy for mapping our Galaxy flawed?
A) His infrared telescopes couldn't penetrate the dust clouds.
B) He used globular clusters, lying above the dust in the disk
C) He relied on visual wavelengths, which are obscured by dust.
D) He used radio telescopes that didn't give enough resolution.
E) He assumed Earth was at the extreme edge of the Galaxy.
Correct Answer:
Verified
Correct Answer:
Verified
Q33: Most of the new star formation in
Q34: How does metal content vary between Population
Q35: What two observations allow us to calculate
Q36: The RR Lyrae stars all have periods
Q37: Which is the correct description for the
Q39: How does gravity lensing let us find
Q40: List at least one naked-eye observation that
Q41: Population I stars came billions of years
Q42: Describe our location in the Milky Way.
Q43: Shapley found that globular clusters are only