(ORDO NEWS) — The moon moves in an orbit around the earth, and at the same time the earth revolves around the sun. Sometimes the Earth moves between the Sun and the Moon.
When this happens, the Earth blocks the sunlight that would normally be reflected by the Moon (it is this sunlight that makes the Moon shine).
Instead of light falling on the surface of the moon, the shadow of the earth falls on it. This eclipse of the moon is a lunar eclipse. A lunar eclipse can only occur on a full moon.
A lunar eclipse can be observed from Earth at night. There are two types of lunar eclipses: total lunar eclipse and partial lunar eclipse.
A total lunar eclipse occurs when the Moon and Sun are on opposite sides of the Earth. Although the Moon is in the Earth’s shadow, some of the sun’s rays reach the Moon.
Sunlight passes through the Earth’s atmosphere, which causes the Earth’s atmosphere to filter out most of the blue light. This makes the Moon appear red to people on Earth.
A partial lunar eclipse occurs when only part of the moon enters the Earth’s shadow. In a partial eclipse, the Earth’s shadow appears very dark on the side of the Moon facing Earth.
What people see from Earth during a partial lunar eclipse depends on how the Sun, Earth, and Moon are aligned.
A lunar eclipse usually lasts for several hours. At least two partial lunar eclipses occur each year, but total lunar eclipses are rare. You can safely look at the lunar eclipse without the use of eye protection.
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