Category

Astronomical objects discovered in 1865

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spiral galaxy in the constellation Pegasus

spiral galaxy in the constellation Pegasus

main-belt asteroid

main-belt asteroid

main-belt asteroid

spiral galaxy in the constellation Pisces

lenticular galaxy in the constellation Cetus

open cluster in the constellation Cassiopeia

unknown astronomical object in the New General Catalogue

galaxy of the Fornax Cluster

galaxy in the Fornax Cluster

spiral galaxy in the constellation Eridanus

galaxy of the Fornax Cluster

galaxy in the constellation Coma Berenices

55P/Tempel–Tuttle

55P/Tempel–Tuttle (commonly known as Comet Tempel–Tuttle) is a retrograde periodic comet with an orbital period of 33 years. It fits the classical definition of a Halley-type comet with a period of between 20 and 200 years. It was independently discovered by Wilhelm Tempel on 19 December 1865, and by Horace Parnell Tuttle on 6 January 1866. It is the parent body of the Leonid meteor shower.

non-periodic comet