_Lictoria.png) Shape model ofLictoria from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | L. Volta |
| Discovery site | Pino Torinese Obs. |
| Discovery date | 30 March 1929 |
| Designations | |
| (1107) Lictoria | |
Named after | Fasces Lictores[2] (Symbol offascism) |
| 1929 FB · A909 UB A917 DF · A924 KC | |
| main-belt · (outer)[3] Hygiea[4] | |
| Orbital characteristics[1] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.28 yr (39,549 days) |
| Aphelion | 3.5809AU |
| Perihelion | 2.7885 AU |
| 3.1847 AU | |
| Eccentricity | 0.1244 |
| 5.68yr (2,076 days) | |
| 312.44° | |
| 0° 10m 24.24s / day | |
| Inclination | 7.0735° |
| 110.84° | |
| 351.35° | |
| Physical characteristics | |
| 69.93±25.12 km[5] 78.86 km(derived)[3] 79.079±0.298 km[6] 79.17±2.9 km[7] 80.73±0.96 km[8] 86.724±1.421 km[9] | |
| 8.56h[a] 8.561 h[b][c] 8.5616±0.0002 h[10] 8.5681±0.0001 h[d] 8.586±0.005 h[10] | |
| 0.0450(derived)[3] 0.05±0.05[5] 0.0538±0.0162[9] 0.063±0.002[8] 0.0646±0.005[7] 0.066±0.012[6] | |
| SMASS =Xc[1] · P[9] | |
| 9.10[7][8][9] · 9.50[3][5] · 9.6[1] | |
1107 Lictoria (prov. designation:1929 FB) is a largeHygiea asteroid, approximately 79 kilometers (49 miles) in diameter, from the outer regions of theasteroid belt. It was discovered byLuigi Volta at thePino Torinese Observatory in 1929,[11] and named after theFasces Lictores, Latin for "Fasci Littori", the symbol of the Italian fascist party.[2]
Lictoria as first observed asA909 UB atHeidelberg Observatory on 17 October 1909. It was officially discovered on 30 March 1929, by Italian astronomerLuigi Volta at theObservatory of Turin near Pino Torinese, Italy.[11] Three weeks later, on 17 March 1929, it was independently discovered by astronomerKarl Reinmuth at Heidelberg, Germany.[2] TheMinor Planet Center only acknowledges the first discoverer.[11]
This asteroid is a member of theHygiea family (601),[4] a very largefamily of carbonaceous outer-belt asteroids, named after thefourth-largest asteroid,10 Hygiea.[12] It orbits the Sun in theouter asteroid belt at a distance of 2.8–3.6 AU once every 5 years and 8 months (2,076 days;semi-major axis of 3.18 AU). Its orbit has aneccentricity of 0.12 and aninclination of 7° with respect to theecliptic.[1] The body'sobservation arc begins with its first observation asA909 UB at Heidelberg in October 1909.[11]
Thisminor planet was named after the symbol offascism used by theItalian Fascist Party. The symbol was called "Fasci Littori", or "Fasces Lictores" in Latin (derived fromfasces andlictor). Several other things such as festivals (littoriali) and fast trains (littorine) were given related names during the fascist period. In particular, the Italian city ofLatina was founded under the name "Littoria" in 1932.[2] The author of the Dictionary of Minor Planet Names,Lutz Schmadel, corresponded with Italian-born astronomerPaul Comba to confirm the meaning for this asteroid.[2][13]
In the Bus–BinzelSMASS classification,Lictoria is a Xc-subtype that transitions from theX-type to the carbonaceousC-type asteroids.[1] It has also been characterized as a primitiveP-type asteroid by theWide-field Infrared Survey Explorer (WISE).[9] The Hygiea family's overallspectral type is a mixture of C-type and somewhat brighterB-type asteroids.[12]: 23
Several rotationallightcurve ofLictoria have been obtained from photometric observations by astronomers William Koff, Eric Barbotin,Stefano Sposetti and Matthieu Conjat, as well as Hiromi and Hiroko Hamanowa (U=2/3/2/2/3).[10][a][b][c][d] Analysis of the best-rated lightcurve from February 2008 gave arotation period of 8.5616 hours with a consolidated brightness variation between 0.16 and 0.30magnitude (U=3).[3]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA's WISE telescope,Lictoria measures between 69.93 and 86.724 kilometers in diameter and its surface has a lowalbedo between 0.05 and 0.066.[5][6][7][8][9]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.045 and a diameter of 78.86 kilometers based on anabsolute magnitude of 9.5.[3]
