Global Information1092 Lilium information
| Discovery[1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 12 January 1924 |
| Designations | |
MPC designation | (1092) Lilium |
| Pronunciation | /ˈlɪliəm/[2] |
Named after | Līlium[3] (flowering plant) |
Alternative designations | 1924 PN · 1929 BE 1936 QE |
Minor planet category | main-belt · (outer)[4] background[5] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.67 yr (40,421 days) |
| Aphelion | 3.1444 AU |
| Perihelion | 2.6552 AU |
Semi-major axis | 2.8998 AU |
| Eccentricity | 0.0843 |
Orbital period (sidereal) | 4.94 yr (1,804 days) |
Mean anomaly | 200.62° |
Mean motion | 0° 11m 58.56s / day |
| Inclination | 5.3885° |
Longitude of ascending node | 307.49° |
Argument of perihelion | 316.51° |
| Physical characteristics | |
| Dimensions | 37.78±12.75 km[6] 40.276±0.243 km[7] 42.853±0.266 km[8] 43.23±0.33 km[9] 46.17±1.5 km[10] 49.56±13.84 km[11] 52.79±0.87 km[12] |
Synodic rotation period | 17.63 h[13] 24.60±0.05 h[14][a] |
Geometric albedo | 0.030±0.001[12] 0.0390±0.003[10] 0.04±0.02[11] 0.044±0.005[9] 0.0452±0.0071[8] 0.05±0.03[6] |
Spectral type | C (assumed)[4] B–V = 0.840[1] U–B = 0.330[1] |
Absolute magnitude (H) | 10.82[1][4][8][9][10][11][12][13] 10.90±0.28[15] · 10.97[6] |
1092 Lilium, provisional designation 1924 PN, is a dark, carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 44 kilometers in diameter. It was discovered on 12 January 1924, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany.[16] The asteroid was named after the flower Lilium (true lily).[3]
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