A Treatise on Spherical Astronomy by Robert Stawell Ball was a work on positional or spherical astronomy. It was first published in 1908. It has 506 pages.The book covers various areas of study, including fundamental formulae, determination of coordinates, atmospheric refraction, the theory of cartography, and more. It assumes a good level of geometry and trigonometry knowledge from readers.

Astronomical observations made at the honorable The East India Company's Observatory at Madras under the superintendence of John Goldingham, Vol. III

Astronomical observations made at the honorable the East India Company's Observatory at Madras under the superintendence of John Goldingham, Vol. IV

Astronomical observations made at the honorable the East India Company's Observatory at Madras in the year 1843-1847 together with the recomputation of the Sun and Moon and planetary observations since 1831.

The fond contains 3 books of Astronomical observations made at the honorable the East India Company's Observatory at Madras

This item was about cover page of his treatise on Transit of Venus in Urdu.

The “Memorandums of the Imperial Academy of Sciences” publish scientific papers from various disciplines and contribute to academic research. Volume 52, containing the “Canon of Eclipses,” was a valuable resource for astronomy and astrophysics enthusiasts who want to study eclipses in the past and future and make predictions about such events. This publication comes from Theodor Ritter von Oppolzer and was published in 1887. The “Canon of Eclipses” was a comprehensive collection of over 13,000 solar and lunar eclipses, including all total solar and penumbral lunar eclipses between ?1208 B.C.E. and 2161 AD. This book provides detailed information on the timing, duration and location of all eclipses mentioned.

This item was about total solar eclipse of 18th August 1868. At Masulipatnam Pogson detected the hydrogen line emission, with a spectroscope. He saw a bright yellow line near the position of D lines of Sodium. The line originated from hitherto unknown element later termed as helium after the source of earliest detection. Hand coloured sketch of the solar spectrum during the Total Solar Eclipse of 1868. Hand coloured picture of the sun before and after the total solar eclipse 1868.

This item was about the sketch of the path of a total solar eclipse that occurred in India in 1868. It depicts the Peninsula of India and shows the track of the Moon's shadow during the eclipse on August 17, 1868. The sketch was created by V.T. & A.K. Johnston in Edinburgh and includes scalar measurements at the bottom.

These photographic slides contain photos of the Mexico Eclipse camp in 1970, the solar corona in 1980, and the Spectrograph well.