| Discovery[1] | |
|---|---|
| Discovered by | S. Arend |
| Discovery site | Uccle Obs. |
| Discovery date | 25 August 1933 |
| Designations | |
| (1287) Lorcia | |
Named after | Laura de Sołohub Dikyj[2] (wife ofTadeusz Banachiewicz) |
| 1933 QL · 1954 TG | |
| main-belt · (outer) Eos[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 83.30 yr (30,426 days) |
| Aphelion | 3.2024AU |
| Perihelion | 2.8214 AU |
| 3.0119 AU | |
| Eccentricity | 0.0632 |
| 5.23yr (1,909 days) | |
| 274.29° | |
| 0° 11m 18.96s / day | |
| Inclination | 9.8207° |
| 202.53° | |
| 267.81° | |
| Physical characteristics | |
| Dimensions | 21.678±0.101 km[4] |
| 0.140±0.024[4] | |
| B–V = 0.850[1] U–B = 0.360[1] | |
| 11.07[1] | |
1287 Lorcia, provisional designation1933 QL, is an Eoanasteroid from the outer regions of theasteroid belt, approximately 22 kilometers in diameter. It was discovered by Belgian astronomerSylvain Arend at theRoyal Observatory of Belgium in Uccle on 25 August 1933.[5] The asteroid was named for Laura de Sołohub Dikyj, wife of Polish astronomerTadeusz Banachiewicz.[2]
Lorcia is a member theEos family (606),[3] the largestasteroid family in theouter main belt consisting of nearly 10,000 asteroids.[6]: 23 It orbits the Sun in theouter main-belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,909 days). Its orbit has aneccentricity of 0.06 and aninclination of 10° with respect to theecliptic.[1] The body'sobservation arc begins with its official discovery observation at Uccle.[5]
As of 2017, no rotationallightcurve ofLorcia has been obtained from photometric observations. The asteroid'srotation period, poles and shape remain unknown.[7]
According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Lorcia measures 21.678 kilometers in diameter and its surface has analbedo of 0.140.[4]
Thisminor planet was named by Polish astronomerTadeusz Banachiewicz (1882–1954) after his wife Laura de Sołohub Dikyj. Banachiewicz was also a prominent mathematician and geodesist, as well as the vice-president of theInternational Astronomical Union in the 1930s. The asteroid1286 Banachiewicza, also discovered by Sylvain Arend, was named in his honor. The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 118).[2]
