25D/Neujmin
| Discovery | |
|---|---|
| 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 (unobserved) |
| 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
| Numbered comets | ||
|---|---|---|
| Previous 24P/Schaumasse |
25D/Neujmin | Next 26P/Grigg–Skjellerup |
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