The item comprises of observations made as Madras equatorial Observations of minor planet Asia of its observations taken on April 1861 by N.R. Pogson.

The item comprises observations made as Madras Equatorial Observations of the minor planet Ariadne. N.R. Pogson took these observations from Madras in 1861, 1863, 1864, and 1866. N.R. Pogson discovered this minor planet on 15 April 1857. Harmonia (minor planet designation: 40 Harmonia) is a giant main-belt asteroid.

The item comprises of observations made as Madras equatorial Observations of minor planet Iris of its discovery and observations taken by N.R. Pogson.

The item comprises observations made as Madras Equatorial Observations of minor planet Harmonia of its observations taken in November and December 1861 by N.R. Pogson. Harmonia (minor planet designation: 40 Harmonia) is a giant main-belt asteroid discovered in 1856.

The item comprises of observations made as Madras equatorial Observations of Europa of its discovery and observations taken by N.R. Pogson.

The item comprises observations made as Madras Equatorial Observations of Comet II; its observations were taken in July 1861 by N.R. Pogson.