SOLAR SYSTEM

Detailed explanation-1: -Red stars are the coolest. Yellow stars are hotter than red stars. White stars are hotter than red and yellow. Blue stars are the hottest stars of all.

Detailed explanation-2: -Stars have different colors, which are indicators of temperature. The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red.

Detailed explanation-3: -Red stars are cooler than the sun, with surface temperatures of 3, 500 K for a bright red star and 2, 500 K for a dark red star. The hottest stars are blue, with their surface temperatures falling anywhere between 10, 000 K and 50, 000 K. Stars are fuelled by the nuclear fusion reactions at their core.

Detailed explanation-4: -According to a new study, a star discovered 75 light-years away is no warmer than a freshly brewed cup of coffee. Dubbed CFBDSIR 1458 10b, the star is what’s called a brown dwarf.