“After sunset, the reddened evening sunlight illuminates small aerosols in higher altitudes of 10 km to 20 km above ground, in the lower stratosphere. This reddish light combines with blue scattered light to provide a purplish hue. Scattering by small aerosol particles (typically 100 nm to 1000 nm in diameter) contributes to the reddish-purple color of the late evening sky.” The clouds themselves aren’t purple, they just appear to be purple sometimes because of the light that reflects on it.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC