Perhaps the greatest of the Greek astronomers, Hipparchus compiled the first catalog of stars, 49) accurately measured their positions, and

Question

Perhaps the greatest of the Greek astronomers, Hipparchus compiled the first catalog of stars, 49) accurately measured their positions, and defined the basic system of stellar brightnesses which we now call the magnitude system. A particular star in his catalogue has an apparent magnitude of 4 and an absolute -12. Determine the distance to the star.

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Lệ Thu 2 years 2021-07-31T11:04:20+00:00 1 Answers 8 views 0

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    2021-07-31T11:05:56+00:00

    Answer:

    Explanation:

    it would be 3 because ju divide 12 by 4

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )