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If a star is blue is its luminosity high or low?
Blue stars are very hot stars and so usually have high luminosity.
What are the temperatures of blue stars?
Between 11,000 and 25,000 Kelvin, or about 40,000 times the luminosity of the sun.
Do blue or yellow stars live longer?
Blue Star- blue stars the super giants of the sky. they are much larger than yellow stars (about 3 times bigger) and hotter. Yellow Stars- yellow stars are a lot smaller and cooler an example is our sun. Therefore, because blue stars are hotter than yellow- they burn their nuclear fuel a lot faster and live for a shorter time.
What type of star has a high temperature and low luminosity in the HR diagram?
A blue dwarf star would have high temperature and low luminosity in the Hertzsprung-Russell (HR) diagram. Blue dwarf stars are in the lower left corner of the diagram, characterized by their high surface temperature and faint luminosity compared to other stars of similar temperature.
Temperature and brightness of stars are indicated by what?
Temperature of stars is indicated by their color, with blue stars being hotter than red stars. Brightness of stars is indicated by their luminosity, which is how much light a star emits.
If a star is blue is its luminosity high or low?
Blue stars are very hot stars and so usually have high luminosity.
What are the temperatures of blue stars?
Between 11,000 and 25,000 Kelvin, or about 40,000 times the luminosity of the sun.
What colour is the The European Union flag?
The European Union flag is a blue background with a circle of 12 yellow stars.
Do blue or yellow stars live longer?
Blue Star- blue stars the super giants of the sky. they are much larger than yellow stars (about 3 times bigger) and hotter. Yellow Stars- yellow stars are a lot smaller and cooler an example is our sun. Therefore, because blue stars are hotter than yellow- they burn their nuclear fuel a lot faster and live for a shorter time.
What type of star has a high temperature and low luminosity in the HR diagram?
A blue dwarf star would have high temperature and low luminosity in the Hertzsprung-Russell (HR) diagram. Blue dwarf stars are in the lower left corner of the diagram, characterized by their high surface temperature and faint luminosity compared to other stars of similar temperature.
Temperature and brightness of stars are indicated by what?
Temperature of stars is indicated by their color, with blue stars being hotter than red stars. Brightness of stars is indicated by their luminosity, which is how much light a star emits.
What is the color temperature and luminosity of a star for the big dipper?
The color temperature of most stars in the Big Dipper constellation is around 3000 to 6000 Kelvin, which would appear as white or slightly blue. The luminosity of these stars varies, but they are generally considered to be bright stars compared to the average stars in the night sky.
Are stars blue in colour?
Stars vary in color and may be red, orange, yellow, white, or blue. Blue stars are the hottest and among the brightest.
Are yellow stars hotter than blue stars?
No Blue stars are estimated to have an effective temperature of ≥ 30,000 K Blue-white stars are estimated to have an effective temperature of 10,000-30,000 K By contrast, yellow stars only have an effective temperature of 5,200-6,000 K. Even yellow-white stars are only 6,000-7,500 K
Are main sequence stars all alike in their luminosity and temperature?
No. Main sequence stars vary greatly in both temperature and luminosity. The least massive stars, red dwarfs, can have temperatures as low as 2,300 Kelvin and luminosity as low as 0.015% that of the sun. The most massive stars, which are blue in color can have temperatures as high as 50,000 Kelvin and may be hundreds of thousands times more luminous than the sun.
How do you get the blue rank award on Miniclip?
First you must get five yellow stars. After that you will go on to blue stars. Getting blue stars might be very hard.
How do you get the blue rank on MiniClip?
You have to get 5 yellow stars, then you go on to Blue Stars/ranks-these are very rare though.
