| 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 | 4.858 AU |
| Eccentricity | 0.5854 |
| Orbital period | 10.71 a |
| Inclination | 3.9854° |
| Last perihelion | April 8, 2015[1] July 15, 2004[1][2] |
| Next perihelion | January 14, 2026[1] |
42P/Neujmin, also known as Neujmin 3, is a periodic comet 2 km in diameter.
This comet and 53P/Van Biesbroeck are fragments of a parent comet that split in March 1845.[3][4][5]
The comet did not come within 1 AU of a planet in the 20th century, but will pass 0.04 AU from asteroid 4 Vesta on July 17, 2036.[6]
The comet nucleus is estimated to be 2.2 kilometers in diameter.[7]
| Numbered comets | ||
|---|---|---|
| Previous 41P/Tuttle–Giacobini–Kresák |
42P/Neujmin | Next 43P/Wolf–Harrington |
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