- Apparent magnitude (m) is a measure of the brightness of a star or other astronomical object. An object’s apparent magnitude depends on its intrinsic luminosity, its distance, and any extinction of the object’s light caused by interstellar dust along the line of sight to the observer.
If you don’t know the guy on the other side of the world, love him anyway because he’s just like you. He has the same dreams, the same hopes and fears. It’s one world, pal. We’re all neighbors.
Frank Sinatra, Playboy interview (1963)