GENERAL KNOWLEDGE

Detailed explanation-1: -Flux decreases with distance according to an inverse-square law, so the apparent magnitude of a star depends on both its absolute brightness and its distance (and any extinction). For example, a star at one distance will have the same apparent magnitude as a star four times as bright at twice that distance.

Detailed explanation-2: -Magnitude-Distance Formula-used to give the relationship between the apparent magnitude, the absolute magnitude and the distance of objects. Formula: m-M =-5 + 5 Log (d) where: m = apparent magnitude. M = absolute magnitude.

Detailed explanation-3: -Distance is another factor that effects the apparent magnitude of a star. The farther a star is from earth the dimmer it will appear because less of the light from the star hits the planet and more of the light from the star goes off in other directions.