O stars
are the hottest, with temperatures from about 20,000K up to more than 100,000K. These stars have few absorption lines, generally due to helium. These stars burn out in a few million years. B stars
What star has a temperature of 2500 K?
The sun has a surface temperature of 5,500 K, typical for a yellow star.
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.
What star has a temperature of 6000 K?
| Table 1. Example Star Colors and Corresponding Approximate Temperatures | Star Color Approximate Temperature Example | Yellow 6000 K Sun | Orange 4000 K Aldebaran | Red 3000 K Betelgeuse |
|---|
What type of star can have a high temperature?
Type O stars
have the highest surface temperatures and can be as hot as 30,000 Kelvins. On the other extreme, type M stars have the lowest surface temperatures and can be as cool as 3,000 K.
What type of star has a high temperature but a high luminosity?
What type of star has a high temperature and a high luminosity?
Blue Giants
19.
Which color star is hottest?
White stars are hotter than red and yellow.
Blue stars
are the hottest stars of all.
Which star is least hottest?
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.
Which star is the coldest?
The temperatures on this
brown dwarf
– a star without the mass to burn nuclear fuel and radiate light – is between minus-54 and 9 degrees Fahrenheit. Brown dwarfs lack the mass to shed light or much heat, making them hard to detect without a telescope that can use an infrared lens.
What color stars have the lowest surface temperature?
The temperature of a star refers to its surface and that is what determines its color. The lowest temperature stars are
red
while the hottest stars are blue. Astronomers are able to measure the temperatures of the surfaces of stars by comparing their spectra to the spectrum of a black body.
What is the correct order of the star's surface temperature from the hottest to the coolest?
As the work progressed, the types were rearranged in a nonalphabetic sequence to put them in order by surface temperature. From hot stars to cool, the order of stellar types is:
O, B, A, F, G, K, M.
What is the rarest star color?
An O-type star is a hot,
blue
-white star of spectral type O in the Yerkes classification system employed by astronomers. They have temperatures in excess of 30,000 kelvin (K).
What is the hottest type of star in the universe?
The hottest one measures ~210,000 K; the hottest known star.
The Wolf-Rayet star WR 102
is the hottest star known, at 210,000 K.
Are class O stars the hottest?
O stars
are the hottest
, with temperatures from about 20,000K up to more than 100,000K. These stars have few absorption lines, generally due to helium. These stars burn out in a few million years. B stars have temperatures between about 10,000 and 20,000K.
What star has the highest luminosity?
| Name Constellation Bolometric luminosity (Solar lum.) | Sun 1 | Alpha Centauri A Centaurus 1.519 | Sirius Canis Major 25.4 | Vega Lyra 40.12 |
|---|
What type of visible star is the coolest?
A red dwarf
is the smallest and coolest kind of star on the main sequence. Red dwarfs are by far the most common type of star in the Milky Way, at least in the neighborhood of the Sun, but because of their low luminosity, individual red dwarfs cannot be easily observed.
Which factor affects the color of the star?
The surface temperature of a star
determines the color of light it emits. Blue stars are hotter than yellow stars, which are hotter than red stars.
