Back 17 جونيسيا (كويكب) ARZ (1177) Гоннессия CE (1177) Gonnessia German 1177 Γκονεσιά Greek 1177 Gonnessia Esperanto (1177) Gonnessia Spanish 1177 Gonnessia Basque سیارک ۱۱۷۷ Persian (1177) Gonnessia French 1177 Gonnessia Hungarian
| Discovery[1] | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Obs. |
| Discovery date | 24 November 1930 |
| Designations | |
| (1177) Gonnessia | |
Named after | François Gonnessiat[2] (French astronomer) |
| 1930 WA · A923 RO | |
| main-belt · (outer)[1][3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.28 yr (31,513 days) |
| Aphelion | 3.4519 AU |
| Perihelion | 3.2440 AU |
| 3.3480 AU | |
| Eccentricity | 0.0310 |
| 6.13 yr (2,238 days) | |
| 344.46° | |
| 0° 9m 39.24s / day | |
| Inclination | 15.071° |
| 252.16° | |
| 241.85° | |
| Physical characteristics | |
| Dimensions | 91.98±9.9 km[4] 93.50±1.01 km[5] 99.27±43.41 km[6] 104.63±33.73 km[7] |
| 6.81±0.01 h (poor)[8] 10 h[9] 28.89±0.02 h[9] 30.51±0.02 h[10][11] 30.51 h[a] 82±5 h[12][b] | |
| 0.03±0.02[7] 0.03±0.04[6] 0.0398±0.010[4] 0.040±0.001[5] | |
| Tholen = XFU[1][3] · X[13] B–V = 0.668[1] U–B = 0.244[1] | |
| 8.86±0.13 (R)[a] · 9.24[3] · 9.24±0.139[14] · 9.30[4][5][7] · 9.35[6] · 9.4[1] · 9.66±0.60[13] | |
1177 Gonnessia, provisional designation 1930 WA, is a dark background asteroid from the outer regions of the asteroid belt, approximately 99 kilometers in diameter. It was discovered on 24 November 1930, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa, and named after astronomer François Gonnessiat.[2][15]
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