On Tuesday, 20 April 2021 at 10:18:26 UTC+10,
mitchr...@gmail.com wrote:
> Its in the Earth shadow. It is not receiving sun
> light.
It is receiving sunlight from diffraction at the Earth's boundary. The direct sunlight is blocked but the edges of Earth is illuminated. It is from this boundary illumination that the Moon receives sunlight.
> How does it get red?
The diffracted sunlight is of low intensity. Only the low frequency of the red light makes it through the Earth's atmosphere to the Moon, making the Moon red. Higher frequencies are blocked, as they get more attenuation through the atmosphere.
Cheers,
Arindam Banerjee
>
> Mitchell Raemsch