Discovery[1] | |
---|---|
Discovered by | K. Reinmuth |
Discovery site | Heidelberg Obs. |
Discovery date | 7 February 1935 |
Designations | |
(1720) Niels | |
Named after | Niels (discoverer's grandson)[2] |
1935 CQ · 1940 WH 1951 AL · 1953 VO1 1959 RA · 1963 WE | |
main-belt · (inner)[3] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 89.52 yr (32,697 days) |
Aphelion | 2.4170 AU |
Perihelion | 1.9593 AU |
2.1881 AU | |
Eccentricity | 0.1046 |
3.24 yr (1,182 days) | |
240.21° | |
Inclination | 0.7301° |
127.86° | |
308.86° | |
Physical characteristics | |
Dimensions | 6.394±0.091[4] 6.566±0.063 km[5] 8.18 km (calculated)[3] |
9.976 h[6] 19.2 h[7] | |
0.20 (assumed)[3] 0.2154±0.0284[5] 0.227±0.017[4] | |
LS[8] · S[3] | |
12.22±0.25[8] · 12.8[1][3] · 13.2[5] | |
1720 Niels, provisional designation 1935 CQ, is a stony asteroid from the inner regions of the asteroid belt, approximately 6.4 kilometers in diameter. It was discovered on 7 February 1935, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named after a grandson of the discoverer.[2][9]
jpldata
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