42P/Neujmin

42P/Neujmin, also known as Neujmin 3, is a periodic comet 2 km in diameter.

42P/Neujmin

Discovery
Discovered by	Grigory Neujmin
Discovery date	August 2, 1929
Alternative designations	1929 III; 1; 1993 XVI
Orbital characteristics ^A
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]

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]

References

1. Seiichi Yoshida (2005-03-05). "42P/Neujmin 3". Seiichi Yoshida's Comet Catalog. Retrieved 2010-03-01.
2. Syuichi Nakano (2003-12-09). "42P/Neujmin 3 (NK 1018)". OAA Computing and Minor Planet Sections. Retrieved 2010-03-01.
3. "IAUC 3940: Sats OF SATURN; PERIODIC COMETS NEUJMIN 3 AND VAN BIESBROECK; Corrs". IAU Circular. 1984-04-25.
4. Comets II. Lunar and Planetary Institute, University of Arizona. p. 236, 237, 314.
5. Are Comets 42P/Neujmin 3 and 53P/Van Biesbroeck Parts of one Comet? Archived 2008-07-06 at the Wayback Machine
6. "JPL Close-Approach Data: 42P/Neujmin 3" (2004-11-07 last obs). Archived from the original on 2012-12-13. Retrieved 2012-12-13.
7. "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