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Serjik [45]
3 years ago
14

13. A basic observation of a star is how bright it appears. This brightness is known as the star's A. absent magnitude. B. appar

ent magnitude. C. absolute magnitude. D. luminosity.
Biology
1 answer:
GarryVolchara [31]3 years ago
5 0
Star brightness is defined by either D. apparent magnitude - when we measure it from Earth (that is how bright it is from Earth) - this is the closest to "basic observation" and the best answer
or by absolute magnitute - how bright it would be at a certain distance (this allows to compare the brightness). 



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Explanation:

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3 years ago
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worty [1.4K]

Answer:

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Explanation:

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