if you look at the electromagnetic spectrum, the higher the frequency, the more energy and heat given off. Blue has a higher frequency than red, and is hotter. An easier way to remember this is a rainbow, the red side has a lower f that the purple side.
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.
blue stars are hotter
A blue star is hotter than a red star. Blue stars have higher surface temperatures, typically exceeding 10,000 Kelvin, while red stars have lower surface temperatures, usually below 4,000 Kelvin. The color of a star is an indication of its temperature, with blue stars being the hottest and red stars being the coolest.
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.
No, Rigel is hotter than Betelgeuse. Rigel is a blue supergiant star with a surface temperature of around 12,000 Kelvin, while Betelgeuse is a red supergiant with a surface temperature of around 3,500 Kelvin.
The surface temperature of a yellow star typically ranges from 5,000 to 6,000 degrees Celsius. This temperature range is lower than that of hotter stars like blue or white ones, but higher than cooler stars like red dwarfs.
White Dwarves and Blue giants are both hotter than Red giant stars.
Stars come in various colors depending on their surface temperature. Hotter stars, like blue ones, have higher surface temperatures, while cooler stars, like red ones, have lower surface temperatures. The color and surface temperature of a star are generally related, with blue stars being hotter (around 10,000 K) and red stars being cooler (around 3,000 K).
a blue star is hotter then a red star because it is younger and thus has more energy. a good example of this is when you look at a flame on a lighter you see blue light at the bottom because blue is hottest and closest to the heat source whereas the red-orange flame at the top is farther away from the heat source and thus is not as hot as the blue.
It's because of the temperature of the star. The temperature defines the colour of the star. A red star is cooler than a blue one. Imagine heating an iron rod. It will start off black, then red, then orange, then yellow and if you continue heating it, it will turn white. If you could heat it a lot more it would turn blue.
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).
The red book on the table is considered hotter.