Kodaikanal Solar Observatory

Kodaikanal Solar Observatory The Solar Observatory is a solar observatory owned and operated by Indian Institute of Astrophysics. It is located on the southern tip of the Palni Hills 4 km from Kodaikanal town, Dindigul district, Tamil Nadu state, South India. The Evershed effect was first detected at this observatory in January 1909. Solar data collected by the lab is the oldest continuous series of its kind in India. Precise observations of the equatorial electrojet are made here due to the unique geographic location of Kodaikanal. Ionospheric soundings, geomagnetic, F region vertical drift and surface observations are made here regularly and summaries of the data obtained are sent to national IMD and global WMO GAW data centers. They have a full-time staff of two scientists and nineteen technicians.
As early as 1881, Mr. Blanford, then Meteorological Reporter to the government of India, recommended the improvement of the work of solar observations in order to obtain accurate measures of the sun’s heating power at the earths surface and its periodic variations.In May 1882, the Government astronomer at Madras, Norman Robert Pogson, proposed the need for photography and spectrography of the sun and the stars using a twenty inch telescope, which could be located at a hill station in South India.


How to reach

4 km from Kodaikanal town, Dindigul district, Tamil Nadu