The Nature of Eclipses
What is an eclipse? There are two types of eclipses - solar and lunar. A solar eclipse occurs during a New Moon and a lunar eclipse occurs during a Full Moon. Having said that, a New Moon and Full Moon occur every month but eclipses only occur a couple of time each year. So what else do we need? We need alignment! A New Moon occurs when the Sun and Moon are sitting in the sky together. A New Moon Eclipse (or Solar Eclipse) occurs when the Sun, Moon and Earth are lined up together in such a way that the Moon blocks the light of the Sun to the Earth. The Sun is said to be eclipsed at this time.
A Full Moon occurs when the Sun and Moon are opposite each other in the sky. A Full Moon Eclipse (or Lunar Eclipse) occurs when the Sun, Moon and Earth are in alignment but this time it's the Earth that sits between the two luminaries are blocks the Sun from the Moon, so it has no light to reflect. The Moon is said to be eclipsed at this time.
How can you tell if someone was born under an eclipse just from looking at their birth chart? If their Sun is sitting within 18 degrees of one of the Nodes and they were born under a New Moon or Full Moon phase, an eclipse was occurring around the time of their birth. There can be something fated about being born under an eclipse. Prince William, future King of England was born under a Solar Eclipse in Cancer.