12848 Agostino
Main-belt asteroid
From Wikipedia, the free encyclopedia
12848 Agostino, provisional designation 1997 NK10, is a stony Eunomia asteroid from the central region of the asteroid belt, approximately 5 kilometers in diameter.
| Discovery[1] | |
|---|---|
| Discovered by | A. Boattini |
| Discovery site | Campo Imperatore |
| Discovery date | 10 July 1997 |
| Designations | |
| (12848) Agostino | |
Named after | Agostino Boattini (discoverer's father)[2] |
| 1997 NK10 · 1993 QQ10 | |
| main-belt · Eunomia[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.88 yr (24,428 days) |
| Aphelion | 2.8514 AU |
| Perihelion | 2.3537 AU |
| 2.6025 AU | |
| Eccentricity | 0.0956 |
| 4.20 yr (1,534 days) | |
| 183.78° | |
| 0° 14m 5.28s / day | |
| Inclination | 15.066° |
| 172.84° | |
| 249.89° | |
| Physical characteristics | |
| Dimensions | 4.55 km (calculated)[3] 4.864±0.120 km[4][5] |
| 6.3225±0.0052 h[6] 6.3350±0.0258 h[6] | |
| 0.21 (assumed)[3] 0.225±0.033[4][5] | |
| S[3] | |
| 13.6[1] · 13.54±0.32[7] · 13.8[4] · 13.537±0.006 (R)[6] · 13.574±0.007 (R)[6] · 14.02[3] | |
The asteroid was discovered on 10 July 1997, by Italian astronomer Andrea Boattini at the Campo Imperatore Observatory in the Gran Sasso massif of central Italy.[8] It was named after the father of the discoverer, Agostino Boattini.[2]
Orbit and classification
Agostino is a member of the Eunomia family, a large group of stony S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.4â2.9 AU once every 4 years and 2 months (1,534 days). Its orbit has an eccentricity of 0.10 and an inclination of 15° with respect to the ecliptic.[1]
The body's observation arc begins 47 years prior to its official discovery observation with a precovery taken at Palomar Observatory in June 1950.[8]
Physical characteristics
Two rotational lightcurves of Agostino were obtained in the R-band from photometric observations by astronomers at the Palomar Transient Factory in August 2010, and February 2012, respectively. Lightcurve analysis gave a rotation period of 6.3350 and 6.3225 hours with a respective brightness variation of 0.51 and 0.84 in magnitude (U=2/2).[6]
According to the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Agostino measures 4.9 kilometers in diameter and its surface has an albedo of 0.23.[4] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 â derived from 15 Eunomia, the family's largest member and namesake â and calculates a diameter of 4.6 kilometers with an absolute magnitude of 14.02.[3]
Naming
This minor planet was named after Agostino Boattini (born 1932), the father of the discoverer.[2] The approved naming citation was published by the Minor Planet Center on 9 May 2001 (M.P.C. 42673).[9]
