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Q46 (CDS-II/2016) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Astronomy and astrophysics Answer Verified

Which one of the following statements is not correct?

Result
Your answer: —  ·  Correct: D
Explanation

Syzygy refers to the alignment of three celestial bodies, such as the Sun, Earth, and Moon, in a straight line [1]. This configuration occurs during two phases: conjunction and opposition [1]. Conjunction happens during a new moon when the Moon is between the Sun and Earth, potentially causing a solar eclipse [1]. Opposition occurs during a full moon when the Earth is between the Sun and Moon, potentially causing a lunar eclipse [1]. Statement 4 is incorrect because syzygy conjunction is a monthly lunar phase phenomenon (new moon) and is not restricted to perihelion [1]. Perihelion is specifically the point in Earth's orbit when it is closest to the Sun, occurring once a year in January. While the Earth's distance from the Sun affects the type or duration of an eclipse, it does not dictate the occurrence of the syzygy alignment itself.

Sources

  1. [1] https://en.wikipedia.org/wiki/Eclipse_cycle
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