Astronomy:356 Liguria
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Short description: Main-belt asteroid
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 21 January 1893 |
| Designations | |
| (356) Liguria | |
| Pronunciation | /lɪˈɡjʊəriə/[1] |
| Named after | Liguria |
| 1893 G | |
| Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 123.10 yr (44961 d) |
| |{{{apsis}}}|helion}} | 3.4123 astronomical unit|AU (510.47 Gm) |
| |{{{apsis}}}|helion}} | 2.10382 AU (314.727 Gm) |
| 2.75806 AU (412.600 Gm) | |
| Eccentricity | 0.23721 |
| Orbital period | 4.58 yr (1673.0 d) |
| Mean anomaly | 28.9708° |
| Mean motion | 0° 12m 54.648s / day |
| Inclination | 8.2243° |
| Longitude of ascending node | 354.796° |
| 78.566° | |
| Physical characteristics | |
| Dimensions | 131.31±2.6 km[2] 134.76 ± 5.17 km[3] |
| Mass | (7.83 ± 1.50) × 1018 kg[3] |
| Mean density | 6.10 ± 1.36 g/cm3[3] |
| Rotation period | 31.82 h (1.326 d) |
| Geometric albedo | 0.0528±0.002 |
| Absolute magnitude (H) | 8.22 |
Liguria (minor planet designation: 356 Liguria) is a very large main-belt asteroid that was discovered by Auguste Charlois on January 21, 1893, in Nice. It is one of seven of Charlois's discoveries that was expressly named by the Astromomisches Rechen-Institut (Astronomical Calculation Institute), and was named for the Italian region.[4]
13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 155 km.[5]
Since 1991, the asteroid has been observed in stellar occultation a total of 6 times, all but one were single chord occultations. A 2006 double chord observation indicated a diameter of 126.6 +/-8.3 km.[6]
References
- ↑ "Liguria". Merriam-Webster Dictionary. https://www.merriam-webster.com/dictionary/Liguria.
- ↑ 2.0 2.1 Yeomans, Donald K., "356 Liguria", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=356, retrieved 11 May 2016.
- ↑ 3.0 3.1 3.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: pp. 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. See Table 1.
- ↑ Schmadel Lutz D. Dictionary of Minor Planet Names (fifth edition), Springer, 2003. ISBN:3-540-00238-3.
- ↑ Ostro, S. J. et al. (August 1985), "Mainbelt asteroids - Dual-polarization radar observations", Science 229 (4712): pp. 442–446, doi:10.1126/science.229.4712.442, PMID 17738665, Bibcode: 1985Sci...229..442O.
- ↑ "Asteroid Data Sets". https://sbn.psi.edu/pds/resource/occ.html.
External links
- 356 Liguria at AstDyS-2, Asteroids—Dynamic Site
- 356 Liguria at the JPL Small-Body Database
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