| Discovery | |
|---|---|
| Discovered by | Grigory Neujmin |
| Discovery date | August 2, 1929 |
| Designations | |
| 1929 III; 1; 1993 XVI | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 7.701 AU |
| Perihelion | 2.014 AU |
| Semi-major axis | 4.858AU |
| Eccentricity | 0.5854 |
| Orbital period | 10.71a |
| Inclination | 3.9854° |
| Last perihelion | April 8, 2015[1] July 15, 2004[1][2] |
| Next perihelion | January 14, 2026[3][1] |
42P/Neujmin, also known asNeujmin 3, is aperiodiccomet 2 km in diameter. It will next come to perihelion on 14 January 2026 at magnitude 19.
This comet and53P/Van Biesbroeck are fragments of a parent comet that split in March 1845.[4][5][6]
The comet did not come within 1 AU of a planet in the 20th century, but will pass 0.04 AU from asteroid4 Vesta on July 17, 2036.[7]
Thecomet nucleus is estimated to be 2.2 kilometers in diameter.[8]
| Numbered comets | ||
|---|---|---|
| Previous 41P/Tuttle–Giacobini–Kresák | 42P/Neujmin | Next 43P/Wolf–Harrington |
 | This comet-related article is astub. You can help Wikipedia byexpanding it. |
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