42P/Neujmin
| 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] |
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.
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]
References
- ↑ "Horizons Batch for 42P/Neujmin (90000496) on 2026-Jan-14 ≈22:34 UT" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2025-09-28. Retrieved 2025-09-28. (JPL#K263/2 Soln.date: 2025-May-16)
- 1 2 3 Seiichi Yoshida (2005-03-05). "42P/Neujmin 3". Seiichi Yoshida's Comet Catalog. Retrieved 2010-03-01.
- ↑ Syuichi Nakano (2003-12-09). "42P/Neujmin 3 (NK 1018)". OAA Computing and Minor Planet Sections. Retrieved 2010-03-01.
- ↑ "Horizons Batch for 42P/Neujmin (90000496) on 2036-Oct-13" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2026-04-15.
- ↑ "IAUC 3940: Sats OF SATURN; PERIODIC COMETS NEUJMIN 3 AND VAN BIESBROECK; Corrs". IAU Circular. 1984-04-25.
- ↑ Comets II. Lunar and Planetary Institute, University of Arizona. p. 236, 237, 314.
- ↑ Are Comets 42P/Neujmin 3 and 53P/Van Biesbroeck Parts of one Comet? Archived 2008-07-06 at the Wayback Machine
- ↑ "JPL Close-Approach Data: 42P/Neujmin 3" (2004-11-07 last obs). Retrieved 2012-12-13.
{{cite web}}: CS1 maint: deprecated archival service (link) - ↑ "JPL Small-Body Database Browser: 42P/Neujmin 3" (2004-11-07 last obs). Jet Propulsion Laboratory. Retrieved 2010-02-28.
External links
- 42P/Neujmin at the JPL Small-Body Database
- 42P at Kronk's Cometography
- 42P/Neujmin 3 at Seiichi Yoshida's website
- 42P/Neujmin at Gideon van Buitenen's website
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