42P/Neujmin
Periodic comet with 10 year orbit
From Wikipedia, the free encyclopedia
42P/Neujmin, also known as Neujmin 3, is a periodic comet 2 km in diameter. It will next came to perihelion on 14 January 2026 at around magnitude 19.
| 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 | January 14, 2026[1][2] April 8, 2015[2] July 15, 2004[2][3] |
| Next perihelion | October 13, 2036[4] |
This comet and 53P/Van Biesbroeck are fragments of a parent comet that split in March 1845.[5][6][7]
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.[8]
The comet nucleus is estimated to be 2.2 kilometers in diameter.[9]
