The item comprises observations made as Madras Equatorial Observations of Comet Biela; its observations were taken in December 1872 by N.R. Pogson. Comet Biela (official designation: 3D/Biela) was a periodic Jupiter-family comet first recorded in 1772 by Montaigne and Messier and finally identified as periodic in 1826 by Wilhelm von Biela.

The item comprises of observations made as Madras equatorial Observations of minor planet Thyra of its discovery and observation staken at several periods of time by N.R. Pogson.

The item comprises of observations made as Madras equatorial Observations of minor planet Camilia of its discovery and observation taken at several periods of time by N.R. Pogson.

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

The item comprises of observations made as Madras equatorial Observations of Undine of its discovery and observations taken at different intervals of October by N.R.Pogson.

The item comprises of observations made as Madras equatorial Observations of minor planet Polyhymnia of its observations taken on April 1867 by N.R. Pogson. Polyhymnia (minor planet designation: 33 Polyhymnia) is a main belt asteroid that was discovered by French astronomer Jean Chacornac on October 28, 1854.

The item comprises observations made as Madras Equatorial Observations of minor planet Atalanta of its observations were taken in April and May 1867 by N.R. Pogson. Atalante (minor planet designation: 36 Atalante) is a large, dark main-belt asteroid. It was discovered by the German-French astronomer Hind

The item comprises observations made as Madras equatorial observations of the minor planet Eurydice at its discovery, including observations taken by N. R. Pogson on August 11, 1866

The item comprises observations made as Madras equatorial observations of the minor planet Calliope at its discovery, including observations taken by N. R. Pogson on September 22, 1866

The item comprises of observations made as Madras equatorial Observations of minor planet Sappho of its discovery and observations taken at several periods of time by N.R.Pogson.