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how many times brighter is it than the other stars?


Sagot :

Answer:

A star with apparent magnitude +3 was 8 (2x2x2) times brighter than a star with apparent magnitude +6. A fourth magnitude star is 2.512 times as bright as a fifth magnitude star, and a second magnitude star is (2.512)4 = 39.82 times brighter than a sixth magnitude star.