SOLAR SYSTEM

Detailed explanation-1: -Sun-the star of our solar system is a star because it produces energy by the fusion reaction of Helium turning into Hydrogen. Our Sun is an average-sized star: there are smaller stars and larger stars, even up to 100 times larger. The Sun is composed almost entirely of hydrogen and helium gas.

Detailed explanation-2: -The Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system.

Detailed explanation-3: -The first person we know of to suggest that the Sun is a star up close (or, conversely, that stars are Suns far away) was Anaxagoras, around 450 BC. It was again suggested by Aristarchus of Samos, but this idea did not catch on.

Detailed explanation-4: -A star is any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources.

Detailed explanation-5: -The sun falls in the category of stars around which all the planets keep on revolving and is the main source of heat and light for the planets. A moon can be defined as a celestial body that revolves around other bodies, specifically the planets. Note: The sun falls in the category of stars.