| Discovery[1] | |
|---|---|
| Discovered by | P. Sicoli F. Manca |
| Discovery site | Sormano Obs. (587) |
| Discovery date | 27 February 1997 |
| Designations | |
| (9115) Battisti | |
Named after | Lucio Battisti (singer, songwriter)[2] |
| 1997 DG · 1980 RC8 1991 RM21 | |
| main-belt · Vestian[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 35.82 yr (13,082 days) |
| Aphelion | 2.6103AU |
| Perihelion | 2.1806 AU |
| 2.3955 AU | |
| Eccentricity | 0.0897 |
| 3.71yr (1,354 days) | |
| 91.637° | |
| 0° 15m 56.88s / day | |
| Inclination | 5.1604° |
| 267.21° | |
| 344.55° | |
| Physical characteristics | |
| Dimensions | 5.14 km(calculated)[3] 5.73±0.58 km[4] |
| 5.0228±0.0025h[5] | |
| 0.195±0.054[4] 0.20(assumed)[3] | |
| S[3] | |
| 13.359±0.002(R)[5] · 13.60[4] · 13.69±0.22[6] · 13.7[1] · 13.81[3] | |
9115 Battisti, provisional designation1997 DG, is a stony Vestianasteroid from the inner regions of theasteroid belt, approximately 5.5 kilometers in diameter. It was discovered on 27 February 1997, by Italian astronomersPiero Sicoli andFrancesco Manca atSormano Astronomical Observatory in northern Italy.[7] The asteroid was named for Italian singer-songwriterLucio Battisti.[2]
Battisti is a member of theVestian family. It orbits the Sun in theinner main-belt at a distance of 2.2–2.6 AU once every 3 years and 9 months (1,354 days). Its orbit has aneccentricity of 0.09 and aninclination of 5° with respect to theecliptic.[1] In September 1980, it was first identified as1980 RC8 atPalomar Observatory, extending the body'sobservation arc by 17 years prior to its official discovery observation at Sormano.[7]
In November 2010, a fragmentary rotationallightcurve ofBattisti was obtained from photometric observations at thePalomar Transient Factory in California. It gave arotation period of5.0228 hours with a low brightness variation of 0.07magnitude (U=1), typically indicating that the asteroid has a nearly spheroidal shape.[5]
According to the survey carried out by NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Battisti measures 5.7 kilometers in diameter and its surface has analbedo of 0.195,[4] while theCollaborative Asteroid Lightcurve Link assumes a standard albedo of 0.20 forstony asteroids and calculates a diameter of 5.1 kilometers, based on anabsolute magnitude of 13.82.[3]
Thisminor planet was named in memory of Italian singer-songwriterLucio Battisti (1943–1998).[8] In the 1970s, Battisti lived in a small village nearSormano, location of the discovering observatory.[2] The official naming citation was published by theMinor Planet Center on 8 December 1998, three months after his death (M.P.C. 33389).[9]
