Solar eclipses only occur around the New Moon because of the alignment of Earth, the Moon, and the Sun which happens at that time. But this does not mean that eclipses of the Sun happen every New Moon night.
The New Moon and the Sun also have to be near a lunar node, which happens a little less than six months apart, and lasts, on average, around 34.5 days. This period is called the eclipse season, and it is the only time that eclipses take place.
The lunar nodes are the two points where the plane of the Moon’s orbital path around Earth meets Earth’s orbital plane around the Sun, the ecliptic. The orbital paths meet because the plane of the Moon’s path around the Earth is inclined at an angle of approximately 5° to the ecliptic.
There are two or three eclipses during every eclipse season. At least one of these is always a solar eclipse, sometimes two. The same is true for lunar eclipses. Which order they come in depends on how each eclipse season coincides with the lunar (synodic) month.
Picture Credit : Google
