Showing 12 results

The fond contain correspondance of M. K. Vainu Bappu with C. V. Raman and mentors, donated by Mrs. Yemuna Bappu to IIA archives.

Earth, Moon and Planets was a book written by Fred Lawrence Whipple and originally published in 1947. It has 302 pages. The book covers various aspects of the Earth, Moon, and planets within our solar system, like the physical characteristics of these bodies, their orbits, geological features, atmospheric properties, and the processes that shaped them.

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

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.

Astronomer William Stephen Jacob of India made important advances in the study of Saturn. He made observations of the Sunnian system and reported his findings, which included determining the elements of Saturn's satellites and Jupiter's adjusted mass. In 1852, he and William Lassell observed the transparency of Saturn's "dusky ring" almost simultaneously. In 1861, James Breen truncated Jacob's planetary observations. The Indian government paid for the printing of his books on the Saturnian system. Important new information about Saturn and its moons was made possible by these observations and calculations. One of his best-known pieces is a sketch he made on November 15, 1852, of Saturn. Using the Madras Equatorial, this drawing was created. W. Forrest then etched it. The illustration caught the appearance of Saturn on that specific date, providing valuable insights into the planet's features and characteristics at that time.

The Observations conducted at Kavalur during the 10 March 1977 Uranus occultation of SAO158687 revealed, apart from the occultation by a satellite system known as the e ring, a decrease in the star's brightness near the moment when the planet's atmosphere could have triggered the occurrence. Since then, a theoretical explanation for the genesis of the a, ß, ?, and d rings has been put out in addition to the identities of these rings becoming firmly established. After thoroughly analysing the Kavalur photoelectric record, they provide several novel elements of Uranus' satellite ring system.

These photographic slides contain photos of the Solar Corona, Spectrograph under the 60-inch tower- 1980 Eclipse, Partial phase on Feb 16, 1980, Flash Spectra, Khartoum, 1952 and White light corona.

The album contains an original notice and photographs of the Indo-Chinese workshop on recent advances in solar physics on 7-11 November 2005 at IIA Bangalore campus. Photos of talks by experts from India and China, group photos of the participants, team lunch and dinner, and photos taken on the outing are preserved in this album. Some photos of the Indian Japan seminar on astrophysics and astronomy in 1995 can also be seen in the album.

The album contains photos of the Jupiter event: information regarding the date and the observatory is unavailable.

The album contains photos of observations showing the rotation of the nucleus of comet Swift-Tuttle.