Which one of the following statements is not correct?
[CDS II 2016]
1) Position of the Sun, Earth and Moon in a straight line of 180° angle is known as syzygy.
2) Syzygy conjunction causes solar eclipse.
3) Syzygy opposition causes eclipse. lunar
4) Syzygy conjunction occurs at the time of perihelion only.
4) Syzygy conjunction occurs at the time of perihelion only.