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To an astronomer, what is a standard candle? Question 41 options: a) an accurately defined brightness scale for stars and galaxies, such as the magnitude
To an astronomer, what is a "standard candle"? Question 41 options: a) an accurately defined brightness scale for stars and galaxies, such as the magnitude scale b) a standard light source that can be placed in a telescope, to which the brightnesses of stars and other objects can be compared c) any galaxy whose redshift has been measured accurately d) any type of object whose absolute magnitude is known
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