KIDS TRIVIA

Detailed explanation-1: -The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth.

Detailed explanation-2: -Stars are self-luminous as they radiate heat and light energy. Stars use hydrogen gas as fuel. Stars rotate about their own galaxy. Stars rotate about the center of a galaxy.

Detailed explanation-3: -Calculating Distances to Stars The apparent movement of a star when seen from a different position is called parallax. Astronomers can use parallax to calculate the distance to nearby stars.