Discovery[1] | |
---|---|
Discovered by | V. Albitzkij |
Discovery site | Simeiz Obs. |
Discovery date | 6 November 1923 |
Designations | |
(1028) Lydina | |
Named after | Lydia Il'inichna Albitskaya[2] (discoverer's wife) |
1923 PG · A907 JF A914 JA | |
main-belt[1] · (outer)[3][4] background[5] · Cybele[a] | |
Orbital characteristics[3] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 110.80 yr (40,471 d) |
Aphelion | 3.7695 AU |
Perihelion | 3.0454 AU |
3.4075 AU | |
Eccentricity | 0.1062 |
6.29 yr (2,297 d) | |
346.68° | |
0° 9m 24.12s / day | |
Inclination | 9.3940° |
62.833° | |
24.747° | |
Physical characteristics | |
71.38±2.2 km[6] 81.85±21.71 km[7] 88.526±0.762 km[8] 96.830±1.081 km[9] 97.18±1.38 km[10] | |
11.674±0.002 h[11] 11.680±0.005 h[12] 15.69 h[13] 48±1 h (poor)[14] | |
0.0318±0.0054[9] 0.032±0.001[10] 0.038±0.006[8] 0.04±0.05[7] 0.0586±0.004[6] | |
Tholen = C[3][4] B–V = 0.684[3] U–B = 0.276[3] | |
9.43[3][4][6][7][9][10] 10.31±0.76[15] | |
1028 Lydina, provisional designation 1923 PG, is a carbonaceous background asteroid and member of the Cybele group from the outermost regions of the asteroid belt, approximately 82 kilometers (50 miles) in diameter. It was discovered at the Simeiz Observatory on the Crimean peninsula on 6 November 1923, by Soviet astronomer Vladimir Albitsky, who named it after his wife, Lydia Il'inichna Albitskaya.[1][2] The dark C-type asteroid has a rotation period of 11.68 hours.[4]
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