1171 Rusthawelia

1171 Rusthawelia
Shape model of Rusthawelia from its lightcurve
Discovery[1]
Discovered byS. Arend
Discovery siteUccle Obs.
Discovery date3 October 1930
Designations
(1171) Rusthawelia
Named after
Shota Rustaveli
(Georgian poet)[2]
1930 TA · 1926 AD
1926 FH · 1927 FC
1949 BT · A904 EB
A913 TA
main-belt · (outer)[3]
background[4]
Orbital characteristics[5]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc113.85 yr (41,584 d)
Aphelion3.7970 AU
Perihelion2.5779 AU
3.1875 AU
Eccentricity0.1912
5.69 yr (2,079 d)
175.66°
0° 10m 23.52s / day
Inclination3.0731°
121.78°
290.57°
Physical characteristics
68.67±16.71 km[6]
70.13±2.3 km[7]
70.216±1.560 km[8]
70.98±2.42 km[9]
72.09±1.19 km[10]
72.38±20.19 km[11]
82.229±1.004 km[12]
Mass(1.81±0.20)×1018 kg[9]
Mean density
9.66±1.45 g/cm3[9]
10.80±0.01 h[13]
10.98±0.01 h[14]
11.013±0.003 h[15]
0.029±0.003[12]
0.038±0.002[10]
0.0393±0.0051[8]
0.0394±0.003[7]
0.04±0.02[6][11]
Tholen = P[3][5] · P[8]
B–V = 0.678[5]
U–B = 0.255[5]
9.89[11]
9.90[3][5][6][7][8][10][12]
9.94±0.16[16]

1171 Rusthawelia, provisional designation 1930 TA, is a large and dark background asteroid, approximately 72 kilometers (45 miles) in diameter, located in the outer regions of the asteroid belt. It was discovered on 3 October 1930, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle, and was an unnoticed rediscovery of a lost minor planet then known as "Adelaide".[1] As the asteroid was already named for Georgian poet Shota Rustaveli when the rediscovery was realized, its former designation was given to another asteroid instead, which is now known as 525 Adelaide.[2] Rusthawelia is a primitive P-type asteroid and has a rotation period of 11 hours.

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