Who First Used RR Lyrae Variable Stars to Determine Distances

question 57

Multiple Choice

Who first used RR Lyrae variable stars to determine distances in our Milky Way galaxy

• A)Henrietta Leavitt
• B)Edwin Hubble
• C)John Glenn
• D)Carl Sagan
• E)Harlow Shapley

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Definitions:

Vocational Degree

A qualification awarded for the completion of education or training directly related to a specific trade or profession.

High School Degree

A certificate or diploma awarded upon successfully completing the required course of studies in a secondary school or high school.

College Degree

A degree conferred by higher education institutions to students who have shown proficiency in a particular area of study or professional field after finishing a prescribed program.

Deindustrialization

A social and economic change resulting from the reduction of industrial activity, especially manufacturing.