Astronomy:222 Lucia
From HandWiki
Short description: Main-belt asteroid
.png) A three-dimensional model of 222 Lucia based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 9 February 1882 |
| Designations | |
| (222) Lucia | |
| Pronunciation | /ˈluːʃiə/[1] German: [ˈluːtsiɐ] |
| A882 CA, 1899 EC 1919 AB | |
| Minor planet category | Main belt (Themis) |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 117.10 yr (42769 d) |
| |{{{apsis}}}|helion}} | 3.5529 astronomical unit|AU (531.51 Gm) |
| |{{{apsis}}}|helion}} | 2.7296 AU (408.34 Gm) |
| 3.1412 AU (469.92 Gm) | |
| Eccentricity | 0.13105 |
| Orbital period | 5.57 yr (2033.5 d) |
| Average Orbital speed | 16.82 km/s |
| Mean anomaly | 349.267° |
| Mean motion | 0° 10m 37.308s / day |
| Inclination | 2.1494° |
| Longitude of ascending node | 80.141° |
| 180.953° | |
| Physical characteristics | |
| Dimensions | 54.66±3.9 km |
| Rotation period | 7.80 h (0.325 d) |
| Geometric albedo | 0.1318±0.021 |
| C? | |
| Absolute magnitude (H) | 9.13 |
Lucia (minor planet designation: 222 Lucia) is a large Themistian asteroid. It was discovered by Johann Palisa on 9 February 1882 in Vienna and named after Lucia, daughter of Austro-Hungarian explorer Graf Wilczek.
This object is spectral C-type and is probably composed of primitive carbonaceous material. Based upon analysis of infrared spectra, it has a diameter of 59.8 ± 0.8 km. This object belongs to the Themis family, which was formed by the break-up of a larger parent body about a billion years ago.[3]
References
- ↑ Noah Webster (1884) A Practical Dictionary of the English Language
- ↑ "222 Lucia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=222;cad=1.
- ↑ Lagoa, V. Alí et al., "5-14 μm Spitzer spectra of Themis family asteroids", Astronomy & Astrophysics 537: A73, doi:10.1051/0004-6361/201118142, Bibcode: 2012A&A...537A..73L.
External links
- Lightcurve plot of 222 Lucia, Palmer Divide Observatory, B. D. Warner (1999)
- 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
- 222 Lucia at AstDyS-2, Asteroids—Dynamic Site
- 222 Lucia at the JPL Small-Body Database
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