42P/Neujmin
| Discovery | |
|---|---|
| Discovered by | Grigory Neujmin |
| Discovery date | August 2, 1929 |
| Designations | |
| 1929 III; 1951 V; 1972 IV; 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 | July 15, 2004[1][2] |
| Next perihelion | April 8, 2015[1][2][3] |
42P/Neujmin, also known as Neujmin 3, is a periodic comet in the Solar System.
This comet and 53P/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 asteroid 4 Vesta on July 17, 2036.[7]
The comet nucleus is estimated to be 2.2 kilometers in diameter.[8]
References
- ^ a b Seiichi Yoshida (2005-03-05). "42P/Neujmin 3". Seiichi Yoshida's Comet Catalog. Retrieved 2010-03-01.
- ^ a b Syuichi Nakano (2003-12-09). "42P/Neujmin 3 (NK 1018)". OAA Computing and Minor Planet Sections. Retrieved 2010-03-01.
- ^ Patrick Rocher (2004-11-07). "Note number : 0099 P/Neujmin 3 : 42P". Institut de mécanique céleste et de calcul des éphémérides. Retrieved 2012-02-19.
- ^ IAU Circular No. 3940
- ^ 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?
- ^ "JPL Close-Approach Data: 42P/Neujmin 3" (2004-11-07 last obs). Retrieved 2010-03-01.
- ^ "JPL Small-Body Database Browser: 42P/Neujmin 3" (2004-11-07 last obs). Jet Propulsion Laboratory. Retrieved 2010-02-28.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 42P at Kronk's Cometography
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