Yes. See the Wikipedia article on "Stellar classification". For example, a class "O" star (blue) has a surface temperature greater than 30,000 K, a class "A" star (white) has a surface temperature of 7,500 - 10,000 K, and a class "M" star (red) has a surface temperature of 2400-3700 K. (All temperatures use the absolute scale.)
Yes it is
blue stars are hotter
Blue stars are the hottest, followed by white stars, then yellow stars like the sun, and lastly red and orange stars which are cooler in temperature.
False. Blue giants(or hypergiants) are hotter than Red giant stars. White dwarves are also hotter but they are smaller than blue giants. (As is implied by the name.)
The color of a star is influenced by its temperature, with blue stars being hotter than red stars. Therefore, you could conclude that the blue star is hotter than the red star. Additionally, blue stars typically have shorter lifespans than red stars.
Yes it is
The blue star is the hottest.
It's not. White is the hottest. Then blue, yellow orange, red.
No. Color, for stars, is (almost) entirely dependent on "surface" temperature, and white stars are significantly hotter then red ones. (The order from coolest to hottest goes brown, red, orange, yellow, yellow-white, white, blue-white, blue).
blue stars are hotter
If a blue star wasn't so hot - it wouldn't be a blue star - it would be a white star.See related question for more details.
Blue stars are the hottest, followed by white stars, then yellow stars like the sun, and lastly red and orange stars which are cooler in temperature.
False. Blue giants(or hypergiants) are hotter than Red giant stars. White dwarves are also hotter but they are smaller than blue giants. (As is implied by the name.)
The color of a star is influenced by its temperature, with blue stars being hotter than red stars. Therefore, you could conclude that the blue star is hotter than the red star. Additionally, blue stars typically have shorter lifespans than red stars.
A red star is cooler and has a lower temperature compared to a blue star, which is hotter. Red stars are typically older, while blue stars are younger. The color of a star is determined by its surface temperature, so these differences in characteristics between red and blue stars are consistent.
The star's temperature. The more blue the star is the hotter it is. Pure blue stars get up to around 18,000 k. The more red the star is the cooler it is. Pure red stars can get up to around 2,500 k. White, yellowish color stars are in the middle.
You can tell if Rigel or Betelgeuse is hotter based on their color. Rigel appears blue-white, indicating a hotter temperature, while Betelgeuse appears orange-red, suggesting a cooler temperature. Additionally, the spectral class of Rigel (B8Ia) is hotter than Betelgeuse's spectral class (M1-2Ia).