Coronagraph is an instrument used for viewing corona of the sun. Corona is the outermost part of the sun. Due to intense light rays, one cannot be able to see corona, thereby we use coronagraph, which hide the direct light from the sun, and allows you to observe the outer part. It has wide use in finding out the planets around different stars.

December 24, 2011 | Mohsin Ali | No Comments | 241 views