25D/Neujmin
| Discovery | |
|---|---|
| Discovered by | Grigory Neujmin |
| Discovery date | February 24, 1916 |
| Orbital characteristics A | |
| Epoch | December 31, 1926 |
| Perihelion | 1.338 AU |
| Semi-major axis | 3.089 AU |
| Eccentricity | 0.567 |
| Orbital period | 5.43 a |
| Inclination | 11.75° |
| Last perihelion |
2014 Mar. 12(?) (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, USA) 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 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
| Periodic comets (by number) | ||
|---|---|---|
| Previous 24P/Schaumasse |
25D/Neujmin | Next 26P/Grigg-Skjellerup |