Respuesta :
Answer:
B
Explanation:
Apparent magnitude (m) is a measure of the brightness of a star or other astronomical object observed from Earth. An object's apparent magnitude depends on its intrinsic luminosity, its distance from Earth, and any extinction of the object's light caused by interstellar dust along the line of sight to the observer.
What is been used in determining the apparent magnitude of a star is B. the distance the star is from Earth.
According to this question, we are to discuss about determining the apparent magnitude of a star.
As a result of this we can see that magnitude of a star can be determined by measuring distance the star is from Earth as this will let us to know the magnitude.
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