Most of the time people see the moon is white, but sometimes it's dark gray, sometimes it's yellow, and it's red and blue, do you know why? These are inseparable from meteorological knowledge, and the following share with you several reasons for the formation of moon colors.
1. Bright moon
Most poems refer to the bright moon as both this bright moon, describing the moon as bright and white. The primary school textbook "Bright Moonlight before the Bed, Suspected to Be Frost on the Ground", and the Tang Dynasty poet Wang Wei's "Zhuliguan":
Sitting alone in the seclusion, playing the piano and whistling.
The people of the deep forest do not know that the bright moon has come to take pictures.
The bright moon often becomes a term for poets to worry and miss, and the bright moon has become an inherent impression of the color of the moon.
The bright moon mainly appears in sunny weather, its formation is: when the sun shines on the moon, and then the moon reflects to the earth in the process of going through the earth's atmosphere, the clear sky atmosphere has less dust and water vapor, so the atmosphere will absorb less reflected light, that is to say, the reflected light (red, orange, yellow, green, blue, blue, purple seven colors) is basically not weakened, when they mix into the earth into the human eye, people see the moon is white.
2. Red Moon
The red moon is also often seen, sometimes referred to as the "blood moon". The formation of the red moon is mainly: when the moon is near the horizon, the sunlight is refracted by the earth's atmosphere, the red light with a longer wavelength is not easy to be scattered, and the light with shorter wavelengths such as green, blue, blue, and purple is easy to be scattered by various particles, so the red light can penetrate the atmosphere to reach the surface of the moon and then be reflected back to the earth by the moon, so the moon we see at this time is red.
3. Yellow moon
The yellow moon is formed because: the sunlight is reflected by the moon into the earth's atmosphere, when passing through the atmosphere, the water vapor and dust in the atmosphere will block the short wavelength of blue, blue, purple light, the rest of the red, orange, yellow, green light mixed together to appear yellow.
4. Blue Moon
The blue moon doesn't appear very often, but it does. Blue moons generally appear in this situation: when there are forest fires, volcanic eruptions and other disasters, the smoke and dust particles produced in the Earth's atmosphere are concentrated, and the atmosphere does not contain small water droplets, in which case the refraction of light by the atmosphere will indirectly cause the appearance of blue moons.
5. The true color of the moon
There are so many colors of the moon, so what is the color of the moon itself? The color of the moon itself is closer to that of a dark gray. The moon itself does not emit light, it is seen by reflecting the sunlight.