what would be the colour of the sky if the earth had no atmosphere?

Answer 1

In the absence of air and atmosphere, the sky would look black. This is the case for sky on the moon which has no atmosphere (the gravity of moon is too weak to keep any gaseous material on its atmosphere).

The blue color of the sky is due to Raleigh scattering of sunlight off the molecules of the atmosphere. This scattering, is more effective at short wavelengths (the blue end of the visible spectrum). Therefore the light scattered down to the earth at a large angle with respect to the direction of the sun's light is predominantly in the blue end of the spectrum.

The blue of the sky is more saturated when we look further from the sun. The almost white scattering near the sun can be attributed to Mie scattering, which is not very wavelength dependent.

Cheers

Answer 2

The sky would technically not exist so it couldn't really have a color. But, if you want me to take a guess as to what it would be like... At night, it would look exactly the same, black with some dots. During the day, you would have black background with a really really bright ball. Depending on how big, close, and bright the sun would be, you could see anywhere from a lot of black to almost none.

Answer 3

the temperature of sun is 5000K-6000K.It's color is yellow .so..... I'm not sure but if the earth didn't have atmosphere then the co lour of the sky will be yellowish orange.

Answer 4

No color, since the sky color depends on preferential scattering of specific wavelengths of light. With nothing to scatter the (blue) light, there would be no color. So black, or the absence of color.

Answer 5

Most illogical. If there were no atmosphere, there would be nobody here to give a crap what color it was. Irrelevant. 'Nothing' has no color.

Answer 6

like moon I think

Answer 7

I guess Black

Answer 8

beige, i think