(1179) Mally
| Discovery | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 19 March 1931 |
| Designations | |
| MPC designation | (1179) Mally |
|
Named after
|
Mally Wolf (discoverer's daughter-in-law) |
| 1931 FD | |
| main-belt · (middle) | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.30 yr (31,520 days) |
| Aphelion | 3.0682 AU |
| Perihelion | 2.1698 AU |
| 2.6190 AU | |
| Eccentricity | 0.1715 |
| 4.24 yr (1,548 days) | |
| 104.44° | |
| 0° 13m 57s / day | |
| Inclination | 8.7067° |
| 6.8116° | |
| 234.15° | |
| Physical characteristics | |
| Dimensions | 10.65 km (calculated) 11.20±0.83 km 13.159±0.183 km 13.379±0.077 km 14.41±0.47 km 16.60±5.64 km |
| 46.6917±0.1516 h | |
|
0.059±0.020 0.0683±0.0080 0.07±0.09 0.071±0.017 0.097±0.015 0.10 (assumed) |
|
| S/C | |
| 12.530±0.002 (R) · 12.70 · 12.8 · 12.9 · 12.98 | |
1179 Mally, provisional designation 1931 FD, is an asteroid and long-lost minor planet from the central region of the asteroid belt, approximately 13 kilometers in diameter. Discovered by Max Wolf in 1931, the asteroid was lost until its rediscovery in 1986. The discoverer named it after his daughter-in-law, Mally Wolf.
Mally was discovered on 19 March 1931, by German astronomer Max Wolf at Heidelberg Observatory in southwest Germany.
Soon after its initial discovery, it became one of few well known lost minor planets for over 55 years. In 1986, Mally was rediscovered by astronomers Lutz Schmadel, Richard Martin West and Hans-Emil Schuster, who remeasured the original discovery plates and computed alternative search ephemerides. This allowed them to find the body very near to its predicted position. In addition, historic photographic plates from the Palomar Sky Survey (1956–1958), the UK Schmidt Telescope (Australia), and the ESO Schmidt Telescope (Chile) confirmed the rediscovery.
Mally orbits the Sun in the central main-belt at a distance of 2.2–3.1 AU once every 4 years and 3 months (1,548 days). Its orbit has an eccentricity of 0.17 and an inclination of 9° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Heidelberg in 1931.
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