954 Li

954 Li is a main belt asteroid and member of the Themis family.^[5] It was discovered by Karl Wilhelm Reinmuth on 4 August 1921 and was named after his wife Lina Alstede Reinmuth, who also had 955 Alstede named after her.^[1] Classified as an FCX-type asteroid under the Tholen classification scheme, Li's spectrum may indicate aqueous alteration.^[5]: 468 The asteroid is estimated to be around 52 kilometres (32 mi) in size,^[3]: 5 and observations of its lightcurve—variations in its observed brightness—indicate that it rotates once every 7.2 hours.^[4]: 604

954 Li

Discovery[1]
Discovered by	K. Reinmuth
Discovery site	Heidelberg
Discovery date	4 August 1921
Designations
MPC designation	(954) Li
Alternative designations	1905 UN · 1920 GC · 1921 PC · 1943 PE · 1952 BE2[1]
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	109.65 yr (40051 days)
Aphelion	3.6711 AU (549.19 Gm)
Perihelion	2.5915 AU (387.68 Gm)
Semi-major axis	3.1313 AU (468.44 Gm)
Eccentricity	0.17239
Orbital period (sidereal)	5.54 yr (2023.9 d)
Mean anomaly	34.454°
Mean motion	0° 10m 40.332s / day
Inclination	1.1694°
Longitude of ascending node	163.235°
Argument of perihelion	151.503°
Physical characteristics
Mean radius	26.03±0.41 km [3]: 5 [a]
Synodic rotation period	7.207±0.002 h[4]: 604
Geometric albedo	0.06 (geometric)[2]
Spectral type	FCX[5]: 468
Absolute magnitude (H)	10.16 (JPL)[2]

Notes

1. Reported as a diameter of 52.06±0.81 km.^[3]: 5