A solar eclipse take place when moon passes between Sun and Earth and shadow of moon totally or partially obscures Sun for a viewer on Earth. 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.
How to watch solar eclipse?
You need to take some precautions to watch solar eclipse, otherwise you may risk your eyes. You should never try to look directly towards Sun during eclipse with the naked eye or with any optical device, such as binoculars or a telescope.
Do not use sunglasses, smoked glass, exposed color film, X-ray films, photographic neutral density filters or Polaroid filters. They are NOT safe for your eyes.
(2nd Aug 2017)