1961 Dufour

1961 Dufour
Modelled shape of Dufour from its lightcurve
Discovery[1]
Discovered byP. Wild
Discovery siteZimmerwald Obs.
Discovery date19 November 1973
Designations
(1961) Dufour
Named after
Henri Dufour (Swiss General)[2]
1973 WA · 1927 UM
1952 BQ1 · 1962 YG
1969 AH · 1973 SY3
main-belt · (outer)[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc54.20 yr (19,798 days)
Aphelion3.5879 AU
Perihelion2.7949 AU
3.1914 AU
Eccentricity0.1242
5.70 yr (2,082 days)
187.01°
0° 10m 22.44s / day
Inclination6.6497°
29.581°
57.015°
Physical characteristics
50.25 km (derived)[3]
50.31±1.6 km (IRAS:20)[4]
51.15±0.98 km[5]
15.7583±0.0309 h[6]
15.79±0.01 h[7]
0.0335 (derived)[3]
0.039±0.002[5]
0.0402±0.003 (IRAS:20)[4]
C[3]
10.60[5] · 10.7[1] · 10.761±0.002 (R)[6] · 10.8[3]

1961 Dufour (prov. designation: 1973 WA) is a large background asteroid, approximately 50 kilometers (31 miles) in diameter, located in the outer region of the asteroid belt. It was discovered on 19 November 1973, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, and later named for 19th-century Swiss General Henri Dufour.[2][8]

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