760 Massinga

760 Massinga
Discovery
Discovered by	F. Kaiser
Discovery site	Heidelberg Obs.
Discovery date	28 August 1913
Designations
MPC designation	(760) Massinga
Named after	Adam Massinger (1888–1914); (German astronomer)
Alternative designations	A913 QD · 1941 SL2; 1913 SL
Minor planet category	main-belt · (outer); background;
Orbital characteristics
	Epoch 31 May 2020 (JD 2459000.5)
	Uncertainty parameter 0
Observation arc	106.27 yr (38,816 d)
Aphelion	3.8806 AU
Perihelion	2.4122 AU
Semi-major axis	3.1464 AU
Eccentricity	0.2333
Orbital period (sidereal)	5.58 yr (2,039 d)
Mean anomaly	176.77°
Mean motion	0° 10m 35.76s / day
Inclination	12.539°
Longitude of ascending node	331.55°
Argument of perihelion	200.56°
Physical characteristics
Dimensions	80.2 km × 56.2 km
Mean diameter	69.103±7.046 km; 70.03±1.25 km; 71.29±1.9 km;
Mass	(1.33±1.32)×1018 kg
Synodic rotation period	10.72±0.03 h
Geometric albedo	0.2276±0.012; 0.237±0.011; 0.360±0.322;
Spectral type	Tholen = SU; S (S3OS2-TH); SL (S3OS2-BB); B–V = 0.947±0.054; U–B = 0.557±0.038;
Absolute magnitude (H)	7.9; 7.96;

760 Massinga (prov. designation: A913 QD or 1913 SL) is a large background asteroid from the outer regions of the asteroid belt, approximately 70 kilometers (43 miles) in diameter. It was discovered by German astronomer Franz Kaiser at the Heidelberg Observatory on 28 August 1913. The stony S-type asteroid has a rotation period of 10.7 hours and is somewhat elongated in shape. It was named in memory of Adam Massinger (1888–1914), a German astronomer at Heidelberg who was killed in World War I.