Discovered by U. Quadri
L. Strabla MPC designation 6793 Palazzolo Discovered 30 December 1991 Orbits Sun | Discovery date 30 December 1991 Minor planet category main-belt · (middle) Absolute magnitude 13.3 Asteroid group Asteroid belt | |
Named after Palazzolo sull'Oglio
(Italian city) Alternative names 1991 YE · 1982 YS2
1990 SZ23 Discovery site Astronomical Observatory of Bassano Bresciano | ||
6793 Palazzolo, provisional designation 1991 YE, is a stony asteroid from the middle region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 30 December 1991, by Italian amateur astronomers Ulisse Quadri and Luca Strabla at the Bassano Bresciano Observatory in northern Italy.
The S-type asteroid orbits the Sun at a distance of 2.3–3.1 AU once every 4 years and 5 months (1,603 days). Its orbit has an eccentricity of 0.16 and an inclination of 5° with respect to the ecliptic. The used first precovery was taken at ESO's La Silla Observatory in 1990, extending the asteroid's observation arc by 1 year prior to its discovery. The first unused observation at Crimea-Nauchnij dates back to 1982.
A photometric light-curve analysis from 2012, at the U.S. Palomar Transient Factory (PTF), California, gave it a rotation period of 7000623080000000000♠6.2308±0.0072 hours with a brightness amplitude of 0.16 in magnitude (U=2). Follow-up observations at the PTF in 2013 and 2014, rendered similar periods of 7000619000000000000♠6.190±0.040 and 7000623230000000000♠6.2323±0.0072 hours with an amplitude of 0.16 and 0.14, respectively (U=2/2).
According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid has a diameter of 9.9 kilometers and an albedo of 0.083, while the Collaborative Asteroid Lightcurve Link assumes an untypically low albedo for a stony asteroid of 0.10 and calculates a diameter of 8.0 kilometers.
The minor planet is named after the Italian city of Palazzolo 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 river Oglio, with archaeological findings dating back to the Roman era. Naming citation was published on 4 April 1996 (M.P.C. 26933).