1203 Nanna
| Discovery [1] | |
|---|---|
| Discovered by | M. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 5 October 1931 |
| Designations | |
| MPC designation | 1203 Nanna |
|
Named after
|
Anna Risi (model of painter) Anselm Feuerbach[2] |
| 1931 TA · 1926 RH 1978 AD |
|
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 89.01 yr (32,511 days) |
| Aphelion | 3.5981 AU |
| Perihelion | 2.1764 AU |
| 2.8873 AU | |
| Eccentricity | 0.2462 |
| 4.91 yr (1,792 days) | |
| 17.388° | |
| Inclination | 5.9587° |
| 224.74° | |
| 175.75° | |
| Physical characteristics | |
| Dimensions | 35.18 km[4] 32.59±0.87 km[5] 35.92±15.13 km[6] 35.08 km (derived)[3] |
| 18.54 h[7] 15.6±0.1 h[8] 25.80±0.05 h[9] |
|
| 0.0473[4] 0.056±0.004[5] 0.028±0.017[6] 0.0329 (derived)[3] |
|
| C [3] | |
| 11.6 | |
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1203 Nanna, provisional designation 1931 TA, is a dark and eccentric asteroid from the outer region of the asteroid belt, about 35 kilometers in diameter. It was discovered by German astronomer Max Wolf at Heidelberg Observatory on 5 October 1931.[10]
The carbonaceous C-type asteroid orbits the Sun at a distance of 2.2–3.6 AU once every 4 years and 11 months (1,792 days). Its orbit shows an eccentricity of 0.25 and is tilted by 6 degrees to the plane of the ecliptic. It has a rotation period of about 18 hours[7] and an albedo in the range of 0.03–0.06, according to the surveys carried out by IRAS, Akari, and WISE/NEOWISE.[4][5][6]
The minor planet was named after Anna Risi, a model in several paintings by German classicist painter Anselm Feuerbach. [2]
References
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<references />, or <references group="..." />External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1203 Nanna at the JPL Small-Body Database
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