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Archival description
IND-IIA-F310 · Fond · 1962-1980

The album contains photos of the initial stages of the Kavalur Observatory campus. Photographs of Director M. K. Vainu Bappu's visit to Kavalur for site inspection and selection for the setting up of the observatory building and workshop. Photos from the construction of 40-inch and 90-inch telescopes, images of albuminization of the 40-inch telescope and the instruments of the telescope can be seen in this album.

Indian Institute of Astrophysics
IND-IIA-F124 · Fond · 1962

This fonds includes photographs of Kavalur, forest rest houses within Kavalur, images capturing M. K. Vainu Bappu alongside a forest guard, the mesmerizing moonlit scenery in Kavalur, and glimpses of the Kavalur village area. Additionally, photographs feature buildings near the Kavalur village, the aluminium chamber in Kavalur, and the breathtaking sunrise over the Kavalur landscape.

Vainu Bappu, M. K.
IND-IIA-F046 · Fond · 1962

This item was a magnetic compass which was used by M.K.Vainu Bappu during the visit to Kavalur for site survey. The magnetic compass is a tool used for determining direction on the surface of the Earth. It operates by using a magnetic pointer that aligns itself with the Earth's magnetic field. This type of compass is the oldest and most commonly used in various forms of transportation such as aircraft, ships, and land vehicles. The Earth's magnetic field acts as an enormous bar magnet with a North-South field that causes freely moving magnets to take on the same orientation. Although the direction of the Earth's magnetic field is not entirely parallel to the North-South axis of the globe, it is close enough to make an uncorrected compass a reasonably good guide. The inaccuracy, known as variation (or declination), varies in magnitude from point to point on Earth.

Vainu Bappu, M. K.