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818 Kapteynia is a minor planet orbiting the Sun. This asteroid is named for the Dutch astronomer Jacobus Kapteyn.

818 Kapteynia
Discovery
Discovered by Max Wolf
Discovery site Heidelberg Observatory
Discovery date 21 February 1916
Designations
MPC designation (818) Kapteynia
1916 YZ
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 99.92 yr (36496 d)
Aphelion 3.4695 AU (519.03 Gm)
Perihelion 2.8693 AU (429.24 Gm)
3.1694 AU (474.14 Gm)
Eccentricity 0.094677
5.64 yr (2060.9 d)
38.374°
0° 10m 28.848s / day
Inclination 15.664°
70.816°
293.096°
Earth MOID 1.91242 AU (286.094 Gm)
Jupiter MOID 2.0269 AU (303.22 Gm)
TJupiter 3.138
Physical characteristics
Mean radius
24.725±1.95 km
16.35 h (0.681 d)
0.1655±0.029
9.3

ReferencesEdit

External linksEdit