why star looks in blue colour view from earth?

Answer 1

Sky has no color, but we see it blue.

The color of the sky is a result of diffuse sky radiation which results in a light blue color. On a sunny day the earth sky usually looks as a blue gradient — dark in the zenith, light near the horizon (due to Rayleigh scattering). It can turn a multitude of colors such as purple due to the airs natural ligh purple color that diffuses in the skysunset/sunrise and turns black at night.

Sky luminance distribution models have been recommended by the International Commission on Illumination (CIE) for the design of daylighting schemes. Recent developments relate to “all sky models” for modelling sky luminance under weather conditions ranging from clear sky to overcast sky.

For this reason you see the stars blue too, because you are looking at through this media.

Answer 2

The most famous blue star is the brightest star in the sky, Sirius, the dog star. It is near Orion. Sirius is the most beautiful blue and the colour looks even better when the star is viewed through even a small telescope or binoculars.

Answer 3

Gnomon has given you the correct answer. the color is a direct result of the temperature at which the star is burning. Then there is the Doppler Effect. If the star is moving toward our sun at a high rate of speed the color will shift a small amount toward the blue end of the spectrum. If the star is moving away quickly it's color will shift toward the red end. The Blue white star Nova is moving toward the solar system at 12 1/2 miles per second and has a blue shift as a result.

Answer 4

Stars look lots of different colours - some look orange, some look red, some blue. This is because they are different colours. The colour of a star depends on what temperature it is "burning" at. Hotter ones are bluer, cooler ones are redder.

But because they are so dim, it is hard to see the colours clearly. We can only detect the colour on the brightest stars because the colour sensors in our eyes are not very good in dim light.

Answer 5

stars doesn't look only blue in colour it may have red, yellow,orange etc. stars which are younger will have blue colour or white colour. star which are middle aged like our own sun will have yellow or orange. stars which are much older will have red colour. the older stars will become red giants, i think you know about red giant. so, all the stars have different colours in accordance to their surface temperature.
blue stars- very high temperatures
yellow stars- maybe around 10000K
red stars- low temperatures compared to all other stages of a star's life

Answer 6

Hi, its not stars looks blue, but its "sky" that looks blue.

In short, atmosphere and light waves makes sky blue.

As light moves through the atmosphere, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Since you see the blue light from everywhere overhead, the sky looks blue.

Answer 7

stable quistion the sky is blue through fact the earth is made out of little atoms and while the colour spectrums of the earth pass the end result's its colours bypass throught the ambience,mutually as the blue waves get scattered all over the sky. for this reason the sky is blue it relatively is likewise what provides the sea its blue hue the sea reflects from the sky... And the explanation the earth seems black from outer area is through the fact in outer area you haven't got those particular spectrums that set of the colour of the earth..

Answer 8

stars dont look blue

Answer 9

Due to scatterin of light of long wavelengths in the air.

Answer 10

from the blue sky,dardurdar