863 Benkoela

863 Benkoela /bɛŋˈkuːlə/ is an A-type asteroid that was discovered by German astronomer Max Wolf on 9 February 1917 from Heidelberg.

863 Benkoela

Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	9 February 1917
Designations
MPC designation	(863) Benkoela
Pronunciation	/bɛŋˈkuːlə/
Alternative designations	1917 BH
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	99.11 yr (36199 days)
Aphelion	3.2950 AU (492.92 Gm)
Perihelion	3.1059 AU (464.64 Gm)
Semi-major axis	3.2004 AU (478.77 Gm)
Eccentricity	0.029538
Orbital period (sidereal)	5.73 yr (2091.3 d)
Mean anomaly	52.959°
Mean motion	0° 10m 19.704s / day
Inclination	25.418°
Longitude of ascending node	116.948°
Argument of perihelion	95.689°
Earth MOID	2.15664 AU (322.629 Gm)
Jupiter MOID	1.91339 AU (286.239 Gm)
TJupiter	3.042
Physical characteristics
Mean radius	13.53±0.75 km
Synodic rotation period	8.20 h (0.342 d)
Geometric albedo	0.5952±0.070
Absolute magnitude (H)	9.02

10μ radiometric data collected from Kitt Peak in 1975 gave a diameter estimate of 34 km.^[2]