Photo from open sources
It turns out, if not for our mysterious, brilliant companion – The Moon, the Earth would be a rather boring and gloomy planet, consider scientists. In addition, they say that without sunlight, which reflected from the surface of the moon, our satellite would be only ordinary, dull, small cosmic ball. Despite, that from the surface of the Earth it seems to us that the moon shines at night pretty bright, in fact it only reflects about 10 percent of all sunlight falling on its surface. The brightness of the moon that we perceive depends on which the earth’s orbit is currently a satellite. Full the moon makes a revolution in its orbit every 29.5 days of its travels. Therefore, the sun illuminates it from various visible by us corners. It’s also the Moon’s journey around the Earth – and at the same time the motion of the earth around the sun – explains the existence of various lunar phases (full moon, new moon, quarter, etc.). Besides, in constantly sunlit condition is only half of the surface of the moon, the other half facing away from The sun is in constant shadow. The brightest observed by us, the state of the moon occurs when it is located under angle of 180 degrees from the Sun from the position we are seeing. At that time we observe the full moon (full illumination by the Sun visible to us half of the moon). The new moon occurs when the moon is located to the observer in such a way that the Sun practically does not illuminate it. This happens when the satellite is between the Sun and Earth in such a way that the side of the moon that we see, reflecting sunlight, collides with the reflection of sunlight by the Earth. In the days before and after the new moon from the surface of the Earth we see only a small strip of the moon reflecting sunlight. This is the result of what scientists call the “ash” effect is a peculiar illusion of our sight: the relatively dark disk of the moon slightly lit by sunlight, which is reflected from surface of the earth, and from the surface of the moon.
Moon sun
