356 Liguria

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]

DiscoveredbyAuguste Charlois

Discoverydate21 January 1893

MPCdesignation

(356) Liguria

Pronunciation/lɪˈɡjʊəriə/^[1]

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356 Liguria

Lightcurve-base 3D-model of 356 Liguria.
Discovery
Discovered by	Auguste Charlois
Discovery date	21 January 1893
Designations
MPC designation	(356) Liguria
Pronunciation	/lɪˈɡjʊəriə/[1]
Named after	Liguria
Alternative designations	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)
Aphelion	3.4123 AU (510.47 Gm)
Perihelion	2.10382 AU (314.727 Gm)
Semi-major axis	2.75806 AU (412.600 Gm)
Eccentricity	0.23721
Orbital period (sidereal)	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°
Argument of perihelion	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]
Synodic rotation period	31.82 h (1.326 d)
Geometric albedo	0.0528±0.002
Absolute magnitude (H)	8.22

Close

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]