Standard Candles, Which Are Important for Finding Distances to Remote

question 126

Multiple Choice

Standard candles, which are important for finding distances to remote galaxies, are

• A) stars and other objects of known intrinsic brightness.
• B) standard laboratory light sources with which the brightness of a galaxy can be compared.
• C) standard bars of known length with which the size of a galaxy can be measured.
• D) heat sources used for calibrating infrared observations of galaxies.

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