GENERAL KNOWLEDGE

Detailed explanation-1: -Star is the object in space that produces its light. Stars, including the Sun, emit light because deep down at the core of a star nuclear fusion reactions are happening. These reactions produce an enormous amount of heat and light.

Detailed explanation-2: -The objects that emit their own light or are sources of light are called luminous objects and the property is known as luminosity. Examples of luminous objects are the sun, the stars and a burning candle.

Detailed explanation-3: -Starlight is the light emitted by stars. It typically refers to visible electromagnetic radiation from stars other than the Sun, observable from Earth at night, although a component of starlight is observable from Earth during daytime.