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Discovered by Grigory Neujmin
Discovery date 24 February 1916
Orbital characteristics A
Epoch 31 December 1926
Perihelion 1.338 AU
Semi-major axis 3.089 AU
Eccentricity 0.567
Orbital period 5.43 a
Inclination 11.75°
Last perihelion 13 March 2014
Next perihelion Lost

Comet 25D/Neujmin, otherwise known as Comet Neujmin 2, is a periodic comet in the solar system discovered by Grigory N. Neujmin (Simeis) on February 24, 1916.

It was confirmed by George van Biesbroeck (Yerkes Observatory, Wisconsin, United States) and Frank Watson Dyson (Greenwich Observatory, England) on March 1.

A prediction by Andrew Crommelin (Royal Observatory, Greenwich, England) for 1921 was considered unfavourable and no observations were made. The next prediction for 2 January 1927 took into account an unnamed object observed in 1920, but despite searches, nothing was seen.

Consequently, this comet has remained a lost comet since 1927.

External links[edit]

Numbered comets
25D/Neujmin Next