2145 Blaauw

2145 Blaauw
Discovery [1]
Discovered byR. M. West
Discovery siteLa Silla Obs.
Discovery date24 October 1976
Designations
(2145) Blaauw
Named after
Adriaan Blaauw [2]
(Dutch astronomer)
1976 UF · 1929 XS
1963 RK · 1980 TW
main-belt · (outer) [1][3]
Ursula [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc41.02 yr (14,983 days)
Aphelion3.5269 AU
Perihelion2.9059 AU
3.2164 AU
Eccentricity0.0965
5.77 yr (2,107 days)
314.16°
0° 10m 15.24s / day
Inclination15.013°
264.34°
279.04°
Physical characteristics
Dimensions34.06 km (derived)[3]
37.11±0.53 km[5]
38.00±10.68 km[6]
40.549±0.848 km[7]
40.55±0.85 km[7]
12.141±0.003 h[8]
0.051±0.011[7]
0.06±0.04[6]
0.0665 (derived)[3]
0.076±0.002[5]
C (assumed)[3]
10.60[5] · 10.80[6][7] · 10.83±0.34[9] · 10.9[1][3]

2145 Blaauw, provisional designation 1976 UF, is a dark Ursula asteroid from the outer regions of the asteroid belt, approximately 38 kilometers in diameter. It was discovered on 24 October 1976, by astronomer Richard Martin West at the La Silla Observatory in northern Chile.[10] The asteroid was named after Dutch astronomer Adriaan Blaauw.[2]

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