1881 Shao

1881 Shao
Discovery[1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date3 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 arc77.71 yr (28,385 d)
Aphelion3.5061 AU
Perihelion2.8339 AU
3.1700 AU
Eccentricity0.1060
5.64 yr (2,062 d)
314.29°
0° 10m 28.56s / day
Inclination9.8706°
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]

  1. ^ a b c d e Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Chang-2016 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).