 Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 30 September 1880 |
| Designations | |
| MPC designation | (219) Thusnelda |
| Pronunciation | /ðʌsˈnɛldə/ |
| Named after | Thusnelda |
| Alternative designations | A880 SA |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 117.58 yr (42947 d) |
| Aphelion | 2.8796 AU (430.78 Gm) |
| Perihelion | 1.8302 AU (273.79 Gm) |
| Semi-major axis | 2.3549 AU (352.29 Gm) |
| Eccentricity | 0.22281 |
| Orbital period (sidereal) | 3.61 yr (1319.9 d) |
| Average orbital speed | 19.41 km/s |
| Mean anomaly | 238.118° |
| Mean motion | 0° 16 21.864 / day |
| Inclination | 10.861° |
| Longitude of ascending node | 200.821° |
| Argument of perihelion | 142.692° |
| Physical characteristics | |
| Dimensions | 40.56±2.7 km 38.279 km |
| Synodic rotation period | 59.74 h (2.489 d) |
| Geometric albedo | 0.2009±0.030 0.2214 ± 0.0471 |
| Spectral type | S (Tholen) |
| Absolute magnitude (H) | 9.32, 9.34 |
219 Thusnelda is a typical S-type Main belt asteroid. It was discovered by Johann Palisa on September 30, 1880, in Pola and was named after Thusnelda, wife of Germanic warrior Arminius.
In 1982, the asteroid was observed using photometry from the La Silla Observatory to generate a composite light curve. The resulting data showed a rotation period of 1.24 days (29.8 h) with a brightness variation of 0.2 in magnitude.
References
- ^ "219 Thusnelda". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ Pravec, P.; et al. (May 2012), "Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations", Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan, no. 1667, Bibcode:2012LPICo1667.6089P. See Table 4.
- Lagerkvist, C.-I.; Kamel, L. (December 1982), "Physical studies of asteroids. X - Photoelectric light curves of the asteroids 219 and 512", Moon and the Planets, 27: 463–466, Bibcode:1982M&P....27..463L, doi:10.1007/BF00929999.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 219 Thusnelda at AstDyS-2, Asteroids—Dynamic Site
- 219 Thusnelda at the JPL Small-Body Database
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