The Kodaikanal Solar Observatory is a sun based observatory claimed and worked by the Indian Institute of Astrophysics. It is on the southern tip of the Palani Hills 4 km from Kodaikanal town, Dindigul region, Tamil Nadu state, South India. Kodaikanal Observatory is a basic piece of the Indian Institute of Astrophysics IIAP, which is arranged in the grand Palani Hills of Tamil Nadu. It was set up in 1899 by moving the exercises of a comparative observatory in Madras Chennai to this site. This old observatory was initially called Solar Physics Observatory, which was later changed to its present name. A 20 cm refractor is kept here, through which critical occultation and comet perceptions are made. This hardware is now and then given to guests, who can see the night sky through it.
At the on-grounds space science exhibition hall, sun based pictures and models are kept in plain view. The feature of this exhibition hall is the live sun oriented picture and Fraunhofer range – sun's noticeable vivid spectrum.A library is likewise present inside the premises of this sunlight based observatory. It gloats of a rich accumulation of galactic writing and critical documents. Huge compositions about Solar and Solar Terrestrial Physics are additionally saved here, which are utilized for investigates and references.