Quick Answer: What Is The Hottest Star Type?

What class of star is the hottest?

In general, a star’s temperature determines its color, from red to blue-white.

Spectral types are named with a letter.

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..

What color stars are there?

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.

Is our sun a red dwarf?

The sun is classified as a G-type main-sequence star, or G dwarf star, or more imprecisely, a yellow dwarf. Actually, the sun — like other G-type stars — is white, but appears yellow through Earth’s atmosphere. … The sun will puff up into a red giant and expand past the orbit of the inner planets, including Earth.

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.

Which is hotter red or blue star?

Blue stars are hotter than yellow stars, which are hotter than red stars. A hot star like Sirius, with a surface temperature of about 9,400 K emits more blue light than red light, so it looks brighter through a blue filter than through a red filter.

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’s the closest star to our sun?

Alpha Centauri AOf the three stars in the system, the dimmest – called Proxima Centauri – is actually the nearest star to the Earth. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth – Sun distance.

What is the hottest place on earth?

Seven years of satellite temperature data show that the Lut Desert in Iran is the hottest spot on Earth.

What colors are the hottest?

Thus the colors of light with the highest frequency will have the hottest temperature. From the visible spectrum, we know violet would glow the hottest, and blue glows less hot. As this is true for all forms of light, its application is seen in fire, or when an object is heated up.

What is the coolest type of star?

The 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.

Which is the hottest star in the galaxy?

A TEAM of British astronomers has discovered the hottest star in the galaxy. With a surface temperature of 170,000 degrees, it glows 30 times hotter than our own sun. About 600 light years away in the constellation of Draco the Dragon, the star is a white dwarf with the unromantic name of RE1502+66.

Which color star is hottest?

White stars are hotter than red and yellow. Blue stars are the hottest stars of all.

Is our sun a red giant?

In approximately 5 billion years, the sun will begin the helium-burning process, turning into a red giant star. When it expands, its outer layers will consume Mercury and Venus, and reach Earth.

Which is hotter blue or white star?

Just for comparison, our Sun, which actually looks white from space, measures about 6,000 Kelvin. The hotter the star, the further up the spectrum you go. The hottest stars are the blue stars. A star appears blue once its surface temperature gets above 10,000 Kelvin, or so, a star will appear blue to our eyes.

What color is the coldest star?

redThe lowest temperature stars are red while the hottest stars are blue.

Do stars twinkle?

In fact, most of the stars are shining with a steady light. The movement of air (sometimes called turbulence) in the atmosphere of Earth causes the starlight to get slightly bent as it travels from the distant star through the atmosphere down to us on the ground. … To our eyes, this makes the star seem to twinkle.

What are the two main types of stars?

Star Classification. The Sun is a as a G2V type star, a yellow dwarf and a main sequence star. … Hertzsprung – Russell Diagram. … Main Sequence Stars – Young Stars. … DWARF STARS. … YELLOW DWARF. … RED DWARF. … Giant and Supergiant Stars – Old, Large Stars.RED GIANT.More items…