1663 van den Bos

1663 van den Bos
van den Bos modeled from its lightcurve
Discovery
Discovered byH. E. Wood
Discovery siteJohannesburg Obs.
Discovery date4 August 1926
Designations
(1663) van den Bos
Named after
Willem van den Bos
(astronomer)
1926 PE · 1928 DD
1936 OM · 1948 BE
1948 EG1 · 1949 KE
1950 XD · 1963 SC
main-belt · Flora
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc88.62 yr (32,370 days)
Aphelion2.6437 AU
Perihelion1.8357 AU
2.2397 AU
Eccentricity0.1804
3.35 yr (1,224 days)
33.128°
0° 17m 38.76s / day
Inclination5.3617°
83.196°
275.24°
Physical characteristics
Dimensions7.58±0.67 km
11.697±0.048 km
12.25 km (derived)
13.537±0.339 km
155±5 h (wrong)
740±10 h
0.1708±0.0178
0.184±0.025
0.2045 (derived)
0.255±0.022
0.406±0.074
S
11.80 · 11.86±0.28 · 11.9 · 12.2

    1663 van den Bos, provisional designation 1926 PE, is a stony Florian asteroid and an exceptionally slow rotator from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 4 August 1926, by English astronomer Harry Edwin Wood at Johannesburg Observatory in South Africa. It was later named after astronomer Willem Hendrik van den Bos.