Ingwelde
| Discovery | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg |
| Discovery date | 26 March 1905 |
| Designations | |
| MPC designation | (561) Ingwelde |
| 1905 QG | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.90 yr (40505 d) |
| Aphelion | 3.5428 AU (530.00 Gm) |
| Perihelion | 2.8069 AU (419.91 Gm) |
| 3.1748 AU (474.94 Gm) | |
| Eccentricity | 0.11589 |
| 5.66 yr (2066.2 d) | |
| 326.466° | |
| 0° 10m 27.228s / day | |
| Inclination | 1.5440° |
| 159.502° | |
| 315.780° | |
| Earth MOID | 1.82204 AU (272.573 Gm) |
| Jupiter MOID | 1.55475 AU (232.587 Gm) |
| Jupiter Tisserand parameter | 3.190 |
| Physical characteristics | |
|
Mean radius
|
12.25±0.8 km |
| 12.012 h (0.5005 d) | |
| 0.0966±0.014 | |
| 11.21 | |
561 Ingwelde is a Themistian asteroid. In light of Max Wolf's practice ca. 1905 of naming his discoveries after operatic heroines, it is most likely named after the title character of Ingwelde, an opera by Max von Schillings premiered in Karlsruhe in 1894.
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