SLO- Journal Nr. 42. Moon eclipse

The Moon’s eclipse occurs when the Sun, Moon, and Earth are aligned in a straight line and the Earth is in the middle. When this happens, the Moon cannot reflect light since it is in the shadow of the Earth. Otherwise, the full moon becomes dark, and part of the sun’s light, nevertheless, reaches the moon due to the fracture in Earth’s atmosphere. Most of the blue light diffuses due to oxygen and ozone in the atmosphere, and there remain mainly red shades in which the Moon shines. In this, the color of the Moon is dependent on the current properties of the Earth’s atmosphere, the activities of the Sun, and the distance between the Earth and the Moon. The partial or half-shade lunar eclipse occurs when the Moon enters the Earth’s half-shadow and does not touch the shadow at all. The light of the Moon is only slightly reduced, so an inexperienced observer cannot notice it at all.

Lunar eclipse appears mostly twice a year.