_Jeanne.png) Modelled shape ofJeanne from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | S. Arend |
| Discovery site | Uccle Obs. |
| Discovery date | 25 August 1933 |
| Designations | |
| (1281) Jeanne | |
Named after | Jeanne Arend[2] (discoverer's daughter) |
| 1933 QJ · 1929 RG 1938 YL · A904 NA | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 112.73 yr (41,173 days) |
| Aphelion | 3.0888AU |
| Perihelion | 2.0223 AU |
| 2.5555 AU | |
| Eccentricity | 0.2087 |
| 4.09yr (1,492 days) | |
| 232.49° | |
| 0° 14m 28.68s / day | |
| Inclination | 7.4473° |
| 210.11° | |
| 72.775° | |
| Physical characteristics | |
| 14.26±5.17 km[5] 21.65±1.7 km[6] 21.65±3.82 km[7] 23.16±0.30 km[8] 25.716±0.108 km[9] 27.620±0.150 km[10] | |
| 15.18±0.06 h[11] | |
| 0.0530±0.0074[10] 0.058±0.007[9] 0.079±0.003[8] 0.0863(derived)[13] 0.0864±0.016[6] 0.09±0.04[7] 0.17±0.08[5] | |
| X[14] · P[10] | |
| 11.36±0.32[14] · 11.50[7] · 11.60[1][6][8][10][13] · 11.78[5] | |
1281 Jeanne (prov. designation:1933 QJ) is a darkasteroid from thebackground population of the intermediateasteroid belt. It was discovered on 25 August 1933, by astronomerSylvain Arend at theRoyal Observatory of Belgium in Uccle, who named it after his daughter, Jeanne.[2][3] The likelyP-type asteroid has arotation period of 15.2 hours and measures approximately 22 kilometers (14 miles) in diameter.
Jeanne is a non-family asteroid of the main belt'sbackground population when applying thehierarchical clustering method to itsproper orbital elements.[4] It orbits the Sun in thecentral asteroid belt at a distance of 2.0–3.1 AU once every 4 years and 1 month (1,492 days;semi-major axis of 2.56 AU). Its orbit has aneccentricity of 0.21 and aninclination of 7° with respect to theecliptic.[1] The asteroid was first identified in July 1904, asA904 NA atHeidelberg Observatory, where the body'sobservation arc begins in September 1929, almost four years prior to its official discovery observation at Uccle.[3]
Thisminor planet was named after Jeanne Arend, daughter of Belgian discovererSylvain Arend.[2] The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 117).[2]
Jeanne has been characterized as both anX-type andP-type asteroid by theWide-field Infrared Survey Explorer (WISE) andPan-STARRS photometric survey, respectively.[10][14]
In May 2002, a rotationallightcurve ofJeanne was obtained fromphotometric observations by French amateur astronomerChristophe Demeautis. Lightcurve analysis gave arotation period of 15.18 hours with a brightness amplitude of 0.45magnitude (U=2).[11] A lightcurve was also modeled using photometric data from the Lowell Photometric Database. It gave a concurring sidereal period of15.30379±0.00001 hours and twospin axes at (153.0°, 19°) and (338.0°, 32.0°) inecliptic coordinates (λ, β).[12]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA's WISE telescope,Jeanne measures between 14.26 and 27.620 kilometers in diameter and its surface has analbedo between 0.053 and 0.17.[5][6][7][8][9][10] TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0863 and a diameter of 21.65 kilometers based on anabsolute magnitude of 11.6.[13]
