The First Attempt to Map the Galaxy Via Star Counts

question 156

Multiple Choice

The first attempt to map the Galaxy via star counts was done by

• A) Edwin Hubble with the new 100" Mt. Wilson telescope in the 1930s.
• B) Harlow Shapley with the RR Lyrae variables in 1920.
• C) William Herschel in the late eighteenth century.
• D) Edward Barnard with long exposure photos about 1900.
• E) Galileo in 1612.

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Definitions:

Analyzing Criteria

The process of examining the standards or conditions used for making judgments or decisions.

Continuing Research

Ongoing systematic investigation to establish facts or principles or to collect information on a subject.

Rationalist

A person who emphasizes reason and evidence in forming knowledge and justifying beliefs, typically regarding philosophical and scientific matters.

Political Ideals

The principles or beliefs that form the foundation of political theories and actions.