GENERAL KNOWLEDGE

Detailed explanation-1: -absolute magnitude gives us an indication of the star’s true brightness, also called luminosity, by telling us how bright the star would appear if it were at a standard distance of 10 parsecs . the dependence of apparent brightness on luminosity and distance B = L / D.

Detailed explanation-2: -The absolute magnitude of a star, M is the magnitude the star would have if it was placed at a distance of 10 parsecs from Earth. By considering stars at a fixed distance, astronomers can compare the real (intrinsic) brightnesses of different stars.

Detailed explanation-3: -Absolute magnitude is defined to be the apparent magnitude an object would have if it were located at a distance of 10 parsecs. So for example, the apparent magnitude of the Sun is-26.7 and is the brightest celestial object we can see from Earth.