Discovery[1] | |
---|---|
Discovered by | K. Reinmuth |
Discovery site | Heidelberg Obs. |
Discovery date | 3 August 1940 |
Designations | |
(1881) Shao | |
Named after | Cheng-yuan Shao[1] (Chinese astronomer) |
1940 PC · 1968 OO | |
main-belt[1][2] · (outer) background[3] | |
Orbital characteristics[2] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 77.71 yr (28,385 d) |
Aphelion | 3.5061 AU |
Perihelion | 2.8339 AU |
3.1700 AU | |
Eccentricity | 0.1060 |
5.64 yr (2,062 d) | |
314.29° | |
0° 10m 28.56s / day | |
Inclination | 9.8706° |
218.07° | |
66.640° | |
Physical characteristics | |
24.083±0.134 km[4] 25.437±0.176 km[5] 25.46±0.86 km[6] 29.21 km (calculated)[7] | |
5.61±0.07 h[8] 7.452±0.002 h[9] | |
0.057 (assumed)[7] 0.0994±0.0087[5] 0.111±0.010[4] 0.115±0.009[6] | |
C (assumed)[7] | |
11.10[5][6] 11.19±0.04 (R)[8] 11.4[2][7] 11.65±0.25[10] | |
1881 Shao, provisional designation 1940 PC or 1968 OO, is a background asteroid from the outer regions of the asteroid belt, approximately 25 kilometers (16 miles) in diameter. It was discovered on 3 August 1940, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany.[1] The presumed C-type asteroid has a rotation period of 7.45 hours.[7] It was named for Chinese astronomer Cheng-yuan Shao.[1]
MPC-object
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