| Discovery[1] | |
|---|---|
| Discovered by | U. Quadri L. Strabla |
| Discovery site | Bassano Bresciano Obs. |
| Discovery date | 30 December 1991 |
| Designations | |
| (6793) Palazzolo | |
Named after | Palazzolo sull'Oglio (Italian city)[2] |
| 1991 YE · 1982 YS2 1990 SZ23 | |
| main-belt · (middle)[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 33.90 yr (12,382 days) |
| Aphelion | 3.1007AU |
| Perihelion | 2.2594 AU |
| 2.6800 AU | |
| Eccentricity | 0.1569 |
| 4.39yr (1,603 days) | |
| 273.56° | |
| 0° 13m 28.56s / day | |
| Inclination | 4.9244° |
| 106.38° | |
| 46.196° | |
| Physical characteristics | |
| Dimensions | 8.01 km(calculated)[3] 9.882±0.051 km[4][5] |
| 6.190±0.040h[6] 6.2308±0.0072 h[3][7] 6.2323±0.0072 h[7] | |
| 0.083±0.004[4][5] 0.10(assumed)[3] | |
| S[3] | |
| 13.6[1] · 13.78±0.23[8] · 13.520±0.110[6] · 13.3[4] · 14.143±0.005(S)[7] · 13.709±0.002(R)[7] | |
6793 Palazzolo, provisional designation1991 YE, is a stonyasteroid from the middle region of theasteroid belt, approximately 9 kilometers in diameter. It was discovered on 30 December 1991, by Italian amateur astronomersUlisse Quadri andLuca Strabla at theBassano Bresciano Observatory in northern Italy.[9] The asteroid was named after the Italian city ofPalazzolo sull'Oglio.[2]
Palazzolo orbits the Sun in thecentral main-belt at a distance of 2.3–3.1 AU once every 4 years and 5 months (1,603 days). Its orbit has aneccentricity of 0.16 and aninclination of 5° with respect to theecliptic.[1]
In 1982, the asteroid was first identified as1982 YS2 atCrimea–Nauchnij. Itsobservation arc begins 1990, with its identification as1990 SZ23 at ESO'sLa Silla Observatory, 1 year prior to its official discovery observation at Bassano Bresciano.[9]
Palazzolo is an assumedS-type asteroid.[3]
In 2012, a rotationallightcurve ofPalazzolo was obtained from photometric observations at thePalomar Transient Factory in California. Lightcurve analysis gave arotation period of6.2308 hours with a brightness amplitude of 0.16 inmagnitude (U=2).[7]
Follow-up observations in 2013 and 2014, gave a similar period of6.190 and6.2323 hours with an amplitude of 0.16 and 0.14, respectively (U=2/2).[7][6]
According to the survey carried out by theNEOWISE mission of NASA's space-basedWide-field Infrared Survey Explorer,Palazzolo has a diameter of 9.9 kilometers and analbedo of 0.083,[4][5] while theCollaborative Asteroid Lightcurve Link assumes an albedo of 0.10 and calculates a diameter of 8.0 kilometers.[3]
Thisminor planet is named after the Italian city ofPalazzolo sull'Oglio, located between Brescia and Bergamo, in northern parts of the country. Known for its industries, including the first Italian factories producing cement and buttons, the city is now famous for its of spinning machines and zippers. It was founded on the banks of riverOglio, with archaeological findings dating back to the Roman era.[2] The approved naming citation was published by theMinor Planet Center on 4 April 1996 (M.P.C. 26933).[10]
