- Syzygy is the alignment of three celestial bodies. A 180° alignment describes a syzygy. - A syzygy conjunction (Moon between Sun and Earth) causes a solar eclipse. - A syzygy opposition (Earth between Sun and Moon) causes a lunar eclipse. - Syzygy conjunction (New Moon) occurs approximately once a lunar cycle (around 29.5 days). Perihelion (Earth closest to the Sun) occurs only once a year (around January 3rd). Therefore, syzygy conjunction does not occur only at the time of perihelion.
Which one of the following statements is not correct?
Asked in UPSC CDS 2 2016 · Topic: The Solar System (Natural Satellites/Moons: Earth's Moon, Notable Moons of other planets)
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Answer: D. Syzygy conjunction occurs at the time of perihelion only.
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