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Lunar eclipse

Lunar eclipse

Lunar eclipses occur when the Moon passes through the shadow cone of Earth



lunar eclipse, Moon, shadow cone, penumbra, umbra, full moon, orbiting of the Moon, synchronous rotation, orbit of the Moon, orbital plane, Sun, Earth, astronomical object, astronomy, geography

Related items


  • What is the relative position of the Sun, the Moon and the Earth during a lunar eclipse?
  • In which phase is the Moon when a lunar eclipse occurs?
  • When can we observe a lunar eclipse?
  • Do lunar eclipses occur at every Full Moon?
  • How often do lunar eclipses occur?
  • Do the orbital planes of the Earth and the Moon coincide?
  • Is it true that the Moon is in synchronous rotation with Earth?
  • Is it true that we always see the same side of the Moon from the Earth?
  • Is it true that the Moon must be located on or near the Earth's orbital plane for a lunar eclipse?
  • Is it true that the Moon has light of its own?
  • Is it true that lunar eclipses do not only occur during the Full Moon phase?
  • When does a lunar eclipse take place?
  • What does the term 'synchronous rotation' refer to?
  • How long does it take for the Moon to complete one orbit around the Earth?
  • What is the umbra?
  • What is the penumbra?
  • When does a full lunar eclipse occur?
  • When does a partial lunar eclipse occur?
  • What colour does the Moon appear during a lunar eclipse?


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Formation of the Earth and Moon

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Apollo 15 mission (Lunar Rover)

The animation shows the two-seater Lunar Rover used in the Apollo 15 mission

Milky Way

The diameter of our galaxy is about 100,000 light years; it contains more than 100 billion stars, one of which is our Sun.

Moon landing: 20 July 1969

Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.

Moon radar experiment (Zoltán Bay, 1946)

In 1946 a Hungarian scientist was the first person to detect radar echoes from the Moon.

Phases of the Moon

During its orbit around the Earth, the visibility of the Moon's illuminated part constantly changes.

Solar eclipse

When the Sun, Earth, and the Moon are arranged in a straight line, the Moon can partially or completely obscure the Sun.

The life-cycle of the Solar System

The formation of the Sun and the planets started with the contraction of a dust cloud about 4.5 billion years ago.

The Moon

The Moon is the Earth's only natural satellite


The rise and drop of sea levels caused by the gravitational force of the Moon.

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