881 Athene

881 Athene
	Modelled shape of Athene from its lightcurve
Discovery
Discovered by	M. F. Wolf
Discovery site	Heidelberg Obs.
Discovery date	22 July 1917
Designations
MPC designation	(881) Athene
Pronunciation	/əˈθiːniː/
Named after	Goddess Athena; (Greek mythology)
Alternative designations	A917 OD · 1917 CL
Minor planet category	main-belt · (middle); background ;
Adjectives	Athenian /əˈθiːniən/
Orbital characteristics
	Epoch 31 May 2020 (JD 2459000.5)
	Uncertainty parameter 0
Observation arc	102.53 yr (37,449 d)
Aphelion	3.1510 AU
Perihelion	2.0764 AU
Semi-major axis	2.6137 AU
Eccentricity	0.2056
Orbital period (sidereal)	4.23 yr (1,543 d)
Mean anomaly	121.30°
Mean motion	0° 13m 59.52s / day
Inclination	14.191°
Longitude of ascending node	277.03°
Argument of perihelion	41.313°
Physical characteristics
Mean diameter	12.04±0.28 km; 12.153±0.101 km;
Pole ecliptic latitude	(123.0°, −58.0°) (λ1/β1); (337.0°, −47.0°) (λ2/β2);
Geometric albedo	0.237±0.039; 0.237±0.012;
Spectral type	S (S3OS2-TH); Sl (S3OS2-BB); L (SDSS-MOC);
Absolute magnitude (H)	11.8

881 Athene (prov. designation: A917 OD or 1917 CL) is a stony background asteroid from the central region of the asteroid belt. It was discovered on 22 July 1917, by astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in southwest Germany. The likely elongated S/L-type asteroid has a rotation period of 13.9 hours and measures approximately 12 kilometers (7.5 miles) in diameter. It was named after Athena, the goddess of wisdom in Greek mythology.

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