Question

the brightness of star dependence on ​

Answer 1

Answer:

The apparent brightness of a star is proportional to 1 divided by its distance squared. That is, if you took a star and moved it twice as far away, it would appear 1/4 as bright; if you moved it four times the distance, it would appear 1/16 as bright.

Answer 2

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☆ It depends on its distance and plasma concentration.