Chinthamani Ragoonatha Chary (1822 or "17 March" 1828 – 5 February 1880) was an Indian astronomer who worked at the Madras Observatory along with N.R.

He was the first Indian Fellow of the Royal Astronomical Society and is known for his studies of variable stars and the discovery of R Reticuli in 1867.

[1][2] During the solar eclipse of 18 August 1868, Chary was given the task of conducting observations from a village called Wanaparthy situated to the north of Kurnool, in the district of Mehaboobnagar.

[1] In an obituary to Chary, The Madras Mail wrote His... ready skill as an observer, combined with accuracy and speed in computation, and a fair and useful amount of self-acquired mathematical knowledge, rendered him, until disabled by impaired health, invaluable in the Observatory, and the chief share in the catalogue of stars in hand, with the Transit Circle, since 1862, comprising already of over 38,000 separate observations, is due to his personal exertions.

(communicated by N R Pogson)[6] In 1874, Chary wrote a book on the transit of Venus in English and six Indian languages, Sanskrit, Kannada, Tamil, Telugu and Urdu in the form of a vivada or dialogue between two individuals.