Back 1578 كيركود (كويكب) ARZ (1578) Kirkwood Catalan (1578) Кирквуд CE (1578) Kirkwood German 1578 Κέρκγουντ Greek 1578 Kirkwood Esperanto (1578) Kirkwood Spanish 1578 Kirkwood Basque کرکوود ۱۵۷۸ Persian (1578) Kirkwood French
_Kirkwood.png) Shape model of Kirkwood from its lightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | Indiana University (Indiana Asteroid Program) |
| Discovery site | Goethe Link Obs. |
| Discovery date | 10 January 1951 |
| Designations | |
| (1578) Kirkwood | |
Named after | Daniel Kirkwood[2] (American astronomer) |
| 1951 AT · 1944 DF 1949 TF · 1952 FK | |
| main-belt · (outer)[1] Hilda[3][4][5] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 73.37 yr (26,797 days) |
| Aphelion | 4.8617 AU |
| Perihelion | 2.9855 AU |
| 3.9236 AU | |
| Eccentricity | 0.2391 |
| 7.77 yr (2,839 days) | |
| 195.23° | |
| 0° 7m 36.48s / day | |
| Inclination | 0.8085° |
| 74.002° | |
| 1.7729° | |
| Jupiter MOID | 0.4366 AU |
| Physical characteristics | |
| Dimensions | 47.077±0.315 km[6] 51.88±1.8 km[4][7] 57.14±1.27 km[8] |
| 12.518±0.002 h[9] 17.9±0.1 h[a] | |
| 0.044±0.002[8] 0.0517±0.004[4][7] 0.063±0.005[6] | |
| Tholen = D[1] · D[4][10] B–V = 0.788[1] U–B = 0.276[1] | |
| 10.26[1][4][7][8] · 10.41±0.50[10] | |
1578 Kirkwood, provisional designation 1951 AT, is a Hilda asteroid from the outermost regions of the asteroid belt, approximately 52 kilometers in diameter. It was discovered on 10 January 1951, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United States.[3] The asteroid was named after American astronomer Daniel Kirkwood.[2]
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