On April 4, Tianyu will stage a relatively special solar eclipse - a total annular solar eclipse. It can be seen in a very small number of areas such as Hainan, Guangdong, Fujian, and Taiwan.
A solar eclipse occurs when the Moon moves in a straight line between the Sun and Earth. It is also known as a "mixed eclipse" and "compound eclipse", which is very rare.. Only seven annularSolar eclipses have occurred in the 21st century.