SOLAR SYSTEM

Detailed explanation-1: -The coolest stars are red with surface temperatures of about 3, 000ºC. As a star’s temperature increases, as a result of there being more gas in the star – and hence more fuel to burn – it becomes hotter. Its colour changes from orange, through yellow, to white.

Detailed explanation-2: -Red dwarfs are the coolest main-sequence stars, with a spectral type of M and a surface temperature of about 2, 000–3, 500 K. Because these stars are so cool, spectral lines of molecules such as titanium oxide, which would be disassociated in hotter stars, are quite prominent.

Detailed explanation-3: -The fact that stars come in different colours is not a mere curiosity. The colour provides a fundamental piece of data in stellar astrophysics-the surface temperature of the star. The hottest stars are blue and the coldest are red, contrary to the use of colours in art and in our daily experience.

Detailed explanation-4: -The color of a star is linked to its surface temperature. The hotter the star, the shorter the wavelength of light it will emit. The hottest ones are blue or blue-white, which are shorter wavelengths of light. Cooler ones are red or red-brown, which are longer wavelengths.

Detailed explanation-5: -Stars are different colors-white, blue, yellow, orange, and red. The color indicates the star’s temperature in its photosphere, the layer where the star emits most of its visible light.