120P/Mueller

120P/Mueller
Discovery
Discovered by	Jean Mueller
Discovery date	October 18, 1987
Designations
Alternative designations	1987 XXXI; 1995 O2
Orbital characteristics
Epoch	2022-01-21
Aphelion	5.448 AU
Perihelion	2.478 AU
Semi-major axis	3.963 AU
Eccentricity	0.3746
Orbital period	7.88 yr
Inclination	8.4899°
Last perihelion	May 7, 2021; February 22, 2013; September 30, 2004
Next perihelion	2029-Apr-05

120P/Mueller, also known as Mueller 1, is a periodic comet in the Solar System. It last came to perihelion in May 2021^[1] and underwent a 1.4 magnitude outburst in August 2021,^[4] (3m 1d after perihelion).

^ ^a ^b Cite error: The named reference MPC was invoked but never defined (see the help page).
^ Syuichi Nakano (2010-04-23). "120P/Mueller 1 (NK 1918)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.
^ Cite error: The named reference Horizons2029 was invoked but never defined (see the help page).
^ Zwicky Transient Facility Survey of Cometary Outbursts

[MPC-1] Cite error: The named reference MPC was invoked but never defined (see the help page).

[NK1918-2] Syuichi Nakano (2010-04-23). "120P/Mueller 1 (NK 1918)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.

[Horizons2029-3] Cite error: The named reference Horizons2029 was invoked but never defined (see the help page).

[4] Zwicky Transient Facility Survey of Cometary Outbursts

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