.png) A three-dimensional model of 192 Nausikaa based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | J. Palisa, 1879 |
| Discovery date | 17 February 1879 |
| Designations | |
| MPC designation | (192) Nausikaa |
| Pronunciation | /nɔːˈsɪki.ə/ |
| Named after | Nausicaä |
| Alternative designations | A879 DA; 1933 HH |
| Minor planet category | Main belt |
| Adjectives | Nausikaan |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 137.04 yr (50054 d) |
| Aphelion | 2.9934 AU (447.81 Gm) |
| Perihelion | 1.8121 AU (271.09 Gm) |
| Semi-major axis | 2.4028 AU (359.45 Gm) |
| Eccentricity | 0.24582 |
| Orbital period (sidereal) | 3.72 yr (1360.4 d) |
| Mean anomaly | 94.342° |
| Mean motion | 0° 15 52.632 / day |
| Inclination | 6.8137° |
| Longitude of ascending node | 343.25° |
| Argument of perihelion | 30.067° |
| Earth MOID | 0.814558 AU (121.8561 Gm) |
| Jupiter MOID | 2.48275 AU (371.414 Gm) |
| TJupiter | 3.474 |
| Physical characteristics | |
| Dimensions | 103.26±1.9 km 90.18 ± 2.80 km |
| Mass | (1.79 ± 0.42) × 10 kg |
| Mean density | 4.64 ± 1.17 g/cm |
| Synodic rotation period | 13.625 h (0.5677 d) |
| Geometric albedo | 0.2330±0.009 |
| Spectral type | S |
| Apparent magnitude | 8.2 |
| Absolute magnitude (H) | 7.13 |
192 Nausikaa is a large main-belt S-type asteroid. It was discovered by Johann Palisa on February 17, 1879, at Pula, then in Austria, now in Croatia. The name derives from Nausicaä, a princess in Homer's Odyssey.
This is an S-type asteroid around 86 km with an elliptical ratio of 1.51. The sidereal rotation period is 13.6217 hours.
Based on the lightcurve data obtained from Nausikaa, a possible satellite was reported in 1985. However, this has not been confirmed. A shape model of Nausikaa has been constructed, also based on the lightcurve data. It indicates a roughly cut, but not very elongated body. In 1998 an occultation of a star by the asteroid was observed from the United States.
In 1988 a search for satellites or dust orbiting this asteroid was performed using the UH88 telescope at the Mauna Kea Observatories, but the effort came up empty.
Nausikaa's orbital period is 3.72 years, its distance from the Sun varying between 1.81 and 2.99 AU. The orbital eccentricity is 0.246. Nausikaa brightened to magnitude 8.3 at a quite favorable opposition on 2 September 2011, when it was 1.875 AU from the Sun and 0.866 AU from the Earth.
Notes
- Stressed on the 'i', /nɔːˈsɪkiə/.
References
- "Nausicaä". Dictionary.com Unabridged (Online). n.d.
- Cf. James Joyce's Ulysses: critical essays (1974) Hart & Hayman
- ^ "192 Nausikaa". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- Marchis, F.; et al. (November 2006), "Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey", Icarus, vol. 185, no. 1, pp. 39–63, Bibcode:2006Icar..185...39M, doi:10.1016/j.icarus.2006.06.001, PMC 2600456, PMID 19081813.
- Other reports of asteroid/TNO companions, Johnstonsarchive.net, retrieved 1 September 2012
- "New worlds in our solar system". Archived from the original on 19 April 2003. Retrieved 19 April 2003.
- Gradie, J.; Flynn, L. (March 1988), "A Search for Satellites and Dust Belts Around Asteroids: Negative Results", Abstracts of the Lunar and Planetary Science Conference, vol. 19, pp. 405–406, Bibcode:1988LPI....19..405G.
External links
- 192 Nausikaa at AstDyS-2, Asteroids—Dynamic Site
- 192 Nausikaa at the JPL Small-Body Database
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