13P/Olbers

13P/Olbers
	Sketch of 13P/Olbers on 14 October 1887 by William Robert Brooks
Discovery
Discovered by	Heinrich Olbers
Discovery date	March 6, 1815
Designations
Alternative designations	1815 E1; 1887 Q1;; 1887 V; 1887f;; 1956 A1; 1956 IV;; 1956a
Orbital characteristics
Epoch	2024-06-19; (JD 2460480.5)
Aphelion	32.56 AU
Perihelion	1.175 AU
Semi-major axis	16.87 AU
Eccentricity	0.9303
Orbital period	69.3 yr; 68y 11d (perihelion to perihelion)
Inclination	44.67°
Longitude of; ascending node	85.8°
Argument of; periapsis	64.4°
Last perihelion	June 19, 1956
Next perihelion	June 30, 2024
Earth MOID	0.466 AU
Jupiter MOID	0.692 AU
Comet total; magnitude (M1)	6.9

13P/Olbers is a periodic comet with an orbital period of 69 years. It fits the classical definition of a Halley-type comet with a period between 20 and 200 years.^[4] The comet had last been seen in 1956 and the next perihelion is on 30 June 2024.

^ ^a ^b MPC
^ ^a ^b Cite error: The named reference Yoshida-13p was invoked but never defined (see the help page).
^ Cite error: The named reference Horizons2024 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference jpldata was invoked but never defined (see the help page).

[MPC-1] MPC

[Yoshida-13p-2] Cite error: The named reference Yoshida-13p was invoked but never defined (see the help page).

[Horizons2024-3] Cite error: The named reference Horizons2024 was invoked but never defined (see the help page).

[jpldata-4] Cite error: The named reference jpldata was invoked but never defined (see the help page).

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