The book "Numerical Lunar Theory" was written by ?Sir George Biddell Airy. It was published in ?1886. The book focuses on lunar theory, specifically the mathematical and numerical calculations involved in understanding the ?moon's motion and its relationship with the Earth and other celestial bodies. It covers gravitational forces, orbital calculations, and the effects of perturbations on the moon's motion. It was 178 pages long.

The item includes information on sightings of minor planets from 1862-1866. 43 planets are included in the observations.

The item contains observation notes of the comet Tempel on 21 and 22 August 1862. Tempel 1 is a Jupiter-family comet.

The fond contains newspaper clippings related to Kalki from 1987-08-10 to 1988-03-19

In this item, The Indan Express talks about the tenth planet to be named Kalki.

In this item, The Times of India talks about the tenth planet to be named Kalki.

This item discusses four new asteroids found by Indian Scientists in our solar system. They talk about Project Kalki, launched by the Indian Institute of Astrophysics in the first quarter of 1987.

This item talks about the new asteroids spotted by the city scientists in Kavalur.

This item depicts two images of Asteroid number 229, " Adelinda", photographed with the Kavalur Schmidt on the 28th and 30th of March, respectively.

The item was about the astronomy progress in India and the world. The evolution of astronomy in India and the world, particularly in the 18th and 19th centuries, and the development during the British era in India. Madras Observatory Genesis started navigation support for East India Company. Later, it evolved into one of the finest observatories. M. K. Vainu Bappu also spoke on how astronomy is a subject in Indian universities when it comes to the world's most developed countries in sciences.