Annular Eclipse viewed from Technopark, Trivandrum
The solar eclipse of January 15, 2010 is an annular eclipse of the Sun
with a magnitude of 0.9190. A solar eclipse occurs when the Moon
passes between Earth and the Sun, thereby totally or partially
obscuring Earth's view of the Sun. An annular solar eclipse occurs
when the Moon's apparent diameter is smaller than the Sun, causing the
sun to look like an annulus (ring), blocking most of the Sun's light.
An annular eclipse appears as a partial eclipse over a region
thousands of kilometres wide.
It was the longest annular solar eclipse of the millennium, and the longest until December 23, 3043, with a maximum length of 11 mins and 7.8 seconds. (The solar eclipse of January 4, 1992 was longer, at 11 minutes, 41 seconds, occurring in the middle of the Pacific Ocean.)