Päikesevarjestus

Päikesevarjestus refers to the phenomenon where one celestial body blocks the light from another. The most common type observed on Earth is a solar eclipse, which occurs when the Moon passes between the Sun and Earth, casting a shadow on Earth. During a solar eclipse, the Moon can partially or completely obscure the Sun's disk. The path of totality, where the Sun is completely hidden, is a narrow band across Earth's surface. Lunar eclipses happen when the Earth passes between the Sun and Moon, and Earth's shadow falls upon the Moon. This causes the Moon to dim and can give it a reddish hue due to the scattering of sunlight through Earth's atmosphere. Other celestial bodies can also cause eclipses. For instance, a transit occurs when a smaller celestial body passes in front of a larger one, like Venus transiting the Sun as seen from Earth. Similarly, an occultation is when a larger celestial body passes in front of a smaller one, obscuring it from view. Understanding päikesevarjestus requires knowledge of orbital mechanics and the relative positions of celestial objects. These events have been observed and documented throughout history, often holding cultural and scientific significance.