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This item concerns about the rare white light flare recorded in hydrogen alpha at Kodaikanal Observatory. These observations were taken on photographic films or plates and digitized for scientific research purposes.

This item was about the brochure published by Department of Post. This brochure was published on 02-12-2008 for 500 paise. 4 lakh copies of this brochure were published to commemorate the centenary of the discovery of "Evershed Effect". It provides a brief detail about the "Evershed Effect".

The item was about the original glass plate that recorded the "Evershed Effect" in 1909.

This item was about the high resolution line sketch spectra captured by John evershed during his experiment at Kodaikanal Observatory. While experimenting, he came across to capturing the high resolution spectra of Altair, Nova Aquila, Arcturus in the observatory. In this sketch, he pictured the resolution spectra that he observed as Umbra for high resolution and Penumbra for low resolution.

This item was about the Sunspot spectra taken by John Evershed, where he discovered that there is a radial outflow of gases in a sunspot. This effect is now known as the "Evershed Effect".

This item was about the pencil sketches of solar prominences drawn by John Evershed.

This item was about John Evershed (1911-1923) who joined Kodaikanal Observatory in 1907 as the Assistant Director and became the Director in 1911. In 1909, Evershed discovered that there is radial outflow of gases in a sunspot. This effect is now Known as the "Evershed Effect". For this seminal work, he was elected to the Royal Society in 1915 and was awarded the Gold Medal of the Royal Astronomical Society in 1916.

This fond contains items related to John Evershed and about his discoveries.

This item was about the photograph of Thomas Royds. Thomas Royds (1923-1937) succeeded John Evershed as the Kodaikanal Observatory Director in 1923 and retired in 1937.