Discovery [1] | |
---|---|
Discovered by | P. Wild |
Discovery site | Zimmerwald Obs. |
Discovery date | 25 October 1973 |
Designations | |
(1960) Guisan | |
Named after | Henri Guisan (General) [2] |
1973 UA · 1961 VC1 1969 UR2 | |
main-belt · ( middle) [3] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 61.49 yr (22,461 days) |
Aphelion | 2.8352 AU |
Perihelion | 2.2185 AU |
2.5268 AU | |
Eccentricity | 0.1220 |
4.02 yr (1,467 days) | |
74.212 ° | |
0° 14m 43.44s / day | |
Inclination | 8.4737° |
22.213° | |
263.99° | |
Physical characteristics | |
Dimensions | 24.55±1.2 km (
IRAS:5)
[4] 24.65±0.28 km [5] 27.004±0.176 km [6] 27.23±0.57 km [7] 28.411±0.105 km [8] |
8.46 h [9] | |
0.0370±0.0050
[8] 0.041±0.003 [7] [6] 0.049±0.011 [5] 0.0496±0.005 (IRAS:5) [4] | |
C
[3] B–V = 0.720 [1] U–B = 0.290 [1] | |
11.93 [1] [3] [7] [8] [5] [9] · 11.93 (IRAS:5) [4] | |
1960 Guisan, provisional designation 1973 UA, is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 25 kilometers in diameter.
It was discovered on 25 October 1973, by astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, and named after Swiss General Henri Guisan. [2] [10]
Guisan orbits the Sun in the central main-belt at a distance of 2.2–2.8 AU once every 4.02 years (1,467 days). Its orbit has an eccentricity of 0.12 and an inclination of 8 ° with respect to the ecliptic. [1]
Guisan has been characterized as a dark C-type asteroid. [3]
It has a rotation period of 8.46 hours [9] and a geometric albedo of 0.04–0.05, as measured by the IRAS, Akari, WISE and NEOWISE surveys. [4] [5] [7] [8]
This minor planet was named in memory of Henri Guisan (1874–1960), general of the Swiss army during the Second World War. He was notably from the country's smaller Swiss-French part rather than from the German-speaking part. [2] The official naming citation was published by the Minor Planet Center on 18 April 1977 ( M.P.C. 4157). [11]
Discovery [1] | |
---|---|
Discovered by | P. Wild |
Discovery site | Zimmerwald Obs. |
Discovery date | 25 October 1973 |
Designations | |
(1960) Guisan | |
Named after | Henri Guisan (General) [2] |
1973 UA · 1961 VC1 1969 UR2 | |
main-belt · ( middle) [3] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 61.49 yr (22,461 days) |
Aphelion | 2.8352 AU |
Perihelion | 2.2185 AU |
2.5268 AU | |
Eccentricity | 0.1220 |
4.02 yr (1,467 days) | |
74.212 ° | |
0° 14m 43.44s / day | |
Inclination | 8.4737° |
22.213° | |
263.99° | |
Physical characteristics | |
Dimensions | 24.55±1.2 km (
IRAS:5)
[4] 24.65±0.28 km [5] 27.004±0.176 km [6] 27.23±0.57 km [7] 28.411±0.105 km [8] |
8.46 h [9] | |
0.0370±0.0050
[8] 0.041±0.003 [7] [6] 0.049±0.011 [5] 0.0496±0.005 (IRAS:5) [4] | |
C
[3] B–V = 0.720 [1] U–B = 0.290 [1] | |
11.93 [1] [3] [7] [8] [5] [9] · 11.93 (IRAS:5) [4] | |
1960 Guisan, provisional designation 1973 UA, is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 25 kilometers in diameter.
It was discovered on 25 October 1973, by astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, and named after Swiss General Henri Guisan. [2] [10]
Guisan orbits the Sun in the central main-belt at a distance of 2.2–2.8 AU once every 4.02 years (1,467 days). Its orbit has an eccentricity of 0.12 and an inclination of 8 ° with respect to the ecliptic. [1]
Guisan has been characterized as a dark C-type asteroid. [3]
It has a rotation period of 8.46 hours [9] and a geometric albedo of 0.04–0.05, as measured by the IRAS, Akari, WISE and NEOWISE surveys. [4] [5] [7] [8]
This minor planet was named in memory of Henri Guisan (1874–1960), general of the Swiss army during the Second World War. He was notably from the country's smaller Swiss-French part rather than from the German-speaking part. [2] The official naming citation was published by the Minor Planet Center on 18 April 1977 ( M.P.C. 4157). [11]