What Is The Hottest Star Type?

What is the hottest star in the universe?

The hottest star in our list is, The Star WR102 which is a blue star with surface Temperature of over 2,10,000 kelvin is the hottest star ever recorded..

What is the coolest type of star?

red dwarfsThe main categories of spectral type are M, K, G, F, A, B, and O. The coolest stars (red dwarfs) being M, and the hottest stars being O. Our own Sun is a G star. Red dwarfs are small stars in terms of their mass.

Is star hotter than Sun?

Answer 5: No, the Sun is not the hottest star; there are many stars much hotter than the Sun! You can tell the approximate temperature of a star by looking at its color. … The surface temperature of our sun is 5777 Kelvins (~5000 degrees C or ~ 9940 degrees F).

Which is the coldest star to Earth?

Washington: Imagine a star as frosty as the earth’s North Pole! It is true as a Penn State University astronomer using NASA’s Wide-field Infrared Survey Explorer (WISE) and Spitzer Space Telescopes has discovered a “brown dwarf” star that appears to be the coldest of its kind. The star has been named WISE J085510.

Which star is least hottest?

The seven main types are M, K, G, F, A, B and O. M stars are the coldest stars and O stars are the hottest. The full system contains other types that are hard to find: W, R, N, and S. The closest star to the Earth, the sun, is a class G star.

What type of star is the hottest What letter?

OThe hottest stars are denoted by the letter O, with the sequence progressing through B, A, F, G, K to the coolest M stars (see Figure 1).

Which color star is hottest?

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.

What are the 7 types of stars?

There are seven main types of stars. In order of decreasing temperature, O, B, A, F, G, K, and M.

What color is a dying star?

The dead star, called a white dwarf, can be seen at the center of the image as a white dot. All of the colorful gaseous material seen in the image was once part of the central star, but was lost in the death throes of the star on its way to becoming a white dwarf.

Why blue star is the hottest?

The surface temperature of Eta Carinae is 40,000 Kelvin, and it shines with much of its radiation in the ultraviolet spectrum. … So, remember, blue stars are blue because of the temperature of their surface. And they’re so hot because blue stars are much more massive than cooler stars like our Sun.