_Leuschneria.png) Modelled shape ofLeuschneria | |
| Discovery[1] | |
|---|---|
| Discovered by | E. Delporte |
| Discovery site | Uccle Obs. |
| Discovery date | 30 August 1935 |
| Designations | |
| (1361) Leuschneria | |
Named after | Armin Otto Leuschner (American astronomer)[2] |
| 1935 QA | |
| main-belt · (outer)[3] | |
| Orbital characteristics[1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 80.95 yr (29,566 days) |
| Aphelion | 3.4801AU |
| Perihelion | 2.6841 AU |
| 3.0821 AU | |
| Eccentricity | 0.1291 |
| 5.41yr (1,976 days) | |
| 16.851° | |
| 0° 10m 55.92s / day | |
| Inclination | 21.592° |
| 164.73° | |
| 173.35° | |
| Physical characteristics | |
| Dimensions | 29.637±0.199 km[4] 30.16 km(derived)[3] 30.301±0.212 km[5] 32.74±0.41 km[6] 33.47±0.55 km[7] |
| 9.646±0.001 h[8] 12.0893±0.0035h[9] | |
| 0.066±0.009[6] 0.077±0.003[7] 0.0773(derived)[3] 0.0779±0.0154[5] | |
| C[3] | |
| 10.80[7] · 11.0[1][3][5][6] · 11.01±0.36[10] | |
1361 Leuschneria, provisional designation1935 QA, is a carbonaceousasteroid from the outer regions of theasteroid belt, approximately 30 kilometers in diameter. It was discovered on 30 August 1935, by Belgian astronomerEugène Delporte atUccle Observatory in Belgium, and named after American astronomerArmin Otto Leuschner.[2][11]
Leuschneria is a carbonaceousC-type asteroid that orbits the Sun at a distance of 2.7–3.5 AU once every 5 years and 5 months (1,976 days). Its orbit has aneccentricity of 0.13 and aninclination of 22° with respect to theecliptic.[1]It was first observed atJohannesburg Observatory, extending the body'sobservation arc by 3 days prior to its official discovery observation at Uccle.[11]
Thisminor planet was named after American astronomerArmin Otto Leuschner (1868–1953), on a proposal bySylvain Arend during a visit to Berkeley, where Leuschner was the director of theLeuschner Observatory at University of California. He is known for his booksCelestial Mechanics andThe Minor Planets of the Hecuba Group. Naming citation was first mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 123). The lunar craterLeuschner is also named in his honor.[2]
In May and June 2015, two rotationallightcurves ofLeuschneria were obtained from photometric observations by Maurice Clark at Preston Gott Observatory ofTexas Tech University, United States, and by Giovanni Casalnuovo at Eurac Observatory (C62) in Bolzano, Italy. Lightcurve analysis gave arotation period of 12.0893 and 9.646 hours with a brightness amplitude of 0.75 and 0.19magnitude, respectively (U=2/2-).[8][9]
According to the surveys carried out by the JapaneseAkari satellite and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Leuschneria measures between 29.637 and 33.47 kilometers in diameter and its surface has a respectivealbedo between 0.066 and 0.0779.[4][5][6][7] TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0773 and a diameter of 30.16 kilometers with anabsolute magnitude of 11.0.[3]
