356 Liguria

Last updated
356 Liguria
Discovery
Discovered by Auguste Charlois
Discovery date21 January 1893
Designations
(356) Liguria
Pronunciation /lɪˈɡjʊəriə/ [1]
Named after
Liguria
1893 G
Main belt
Orbital characteristics [2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 123.10 yr (44961 d)
Aphelion 3.4123  AU (510.47  Gm)
Perihelion 2.10382 AU (314.727 Gm)
2.75806 AU (412.600 Gm)
Eccentricity 0.23721
4.58 yr (1673.0 d)
28.9708°
0° 12m 54.648s / day
Inclination 8.2243°
354.796°
78.566°
Physical characteristics
Dimensions131.31±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]
31.82  h (1.326  d)
0.0528±0.002
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]

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    References

    1. "Liguria". Merriam-Webster Dictionary .
    2. 1 2 Yeomans, Donald K., "356 Liguria", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory , retrieved 11 May 2016.
    3. 1 2 3 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.
    4. Schmadel Lutz D. Dictionary of Minor Planet Names (fifth edition), Springer, 2003. ISBN   3-540-00238-3.
    5. Ostro, S. J.; et al. (August 1985), "Mainbelt asteroids - Dual-polarization radar observations", Science, vol. 229, no. 4712, pp. 442–446, Bibcode:1985Sci...229..442O, doi:10.1126/science.229.4712.442, PMID   17738665.
    6. "Asteroid Data Sets". sbn.psi.edu. Retrieved 26 May 2018.