786 Bredichina

786 Bredichina
Discovery
Discovered by	F. Kaiser
Discovery site	Heidelberg Obs.
Discovery date	20 April 1914
Designations
MPC designation	(786) Bredichina
Named after	Fyodor Bredikhin (1831–1904); (Russian astronomer);
Alternative designations	A914 HD · 1914 UO
Minor planet category	main-belt · (outer); background;
Orbital characteristics
	Epoch 31 May 2020 (JD 2459000.5)
	Uncertainty parameter 0
Observation arc	105.79 yr (38,638 d)
Aphelion	3.6852 AU
Perihelion	2.6690 AU
Semi-major axis	3.1771 AU
Eccentricity	0.1599
Orbital period (sidereal)	5.66 yr (2,068 d)
Mean anomaly	267.56°
Mean motion	0° 10m 26.4s / day
Inclination	14.518°
Longitude of ascending node	89.766°
Argument of perihelion	133.61°
Physical characteristics
Dimensions	160.5 km × 80.6 km
Mean diameter	91.60±6.2 km; 105.28±3.41 km; 108.309±0.868 km; 111.47±1.30 km;
Mass	(9.81 ± 5.40/3.21)×1017 kg
Mean density	1.606 ± 0.884/0.526 g/cm3
Synodic rotation period	29.434±0.001 h
Geometric albedo	0.051±0.001; 0.052±0.008; 0.0730±0.011;
Spectral type	Tholen = C; B–V = 0.692±0.021; U–B = 0.254±0.029;
Absolute magnitude (H)	8.65; 8.9; 8.95;

786 Bredichina (prov. designation: A914 HD or 1914 UO) is a carbonaceous and very large background asteroid, approximately 104 kilometers (65 miles) in diameter, located in the outer region of the asteroid belt. It was discovered by German astronomer Franz Kaiser at the Heidelberg-Königstuhl State Observatory on 20 April 1914. The elongated C-type asteroid has a longer than average rotation period of 29.4 hours. It was named after Russian astronomer Fyodor Bredikhin (1831–1904).