Why was Herschel's strategy for mapping our Galaxy flawed?
A) He used radio telescopes that didn't give enough resolution.
B) He assumed Earth was at the extreme edge of the Galaxy.
C) He used globular clusters, lying above the dust in the disc.
D) His infrared telescopes couldn't penetrate the dust clouds.
E) He relied on visual wavelengths, which are obscured by dust.

Question

Quizplus · Accepted Answer

Herschel's strategy was flawed because he relied on visual wavelengths to map the Galaxy, but these wavelengths are significantly obscured by interstellar dust, limiting the accuracy and completeness of his observations.

Why Was Herschel's Strategy for Mapping Our Galaxy Flawed