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Consider the following sentences: 1. A lunar eclipse can only happen at the phase of the new moon. 2. A solar eclipse can only happen at the phase of the full moon. 3. During solar and lunar eclipses sun, earth and moon are in syzygy position. Which of the statements above is/are correct?

Consider the following sentences: 1. A lunar eclipse can only happen at the phase of the new moon. 2. A solar eclipse can only happen at the phase of the full moon. 3. During solar and lunar eclipses sun, earth and moon are in syzygy position. Which of the statements above is/are correct? Correct Answer 3 only

The correct answer is 3 only.

Key Points

In a gravitational system, a straight-line configuration of three or more celestial bodies is called Syzygy position.

  • Solar and lunar eclipses occur in the syzygy positions. Hence statement 3 is correct.
  • The term is used to refer to Sun, Earth, Moon or any other planet.
  • The Moon is having four principal phases namely the new moon, first quarter, full moon and third quarter.
  • A solar eclipse occurs when the moon passes in a direct line between the Earth and the Sun
    • The moon’s shadow drops over the earth surface and blocks the sun’s light.
    • The moon orbits the Earth at an angle of approximately 5 degrees relative to the Earth-sun place and crosses Earth’s orbital plane twice a year.
    • This is the time when an eclipse can occur.
    • For a solar eclipse, the moon should be in a new moon phase.
    • Hence statement 2 is not correct.
  • Lunar eclipse when Earth’s shadow blocks most of the sunlight from directly dropping on the moon’s surface.
    • The Earth Caste two cone-shaped shadow:
      • The Umbra is the dark and inner shadow
      • The Penumbra is the outer and diffused shadow.
    • A lunar eclipse only occurs when it is a full moon phase.
    • Hence statement 1 is not correct.

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