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7866 Sicoli
Nysa asteroid
Nysa asteroid
| Field | Value |
|---|---|
| minorplanet | 000257866 không biết không thấy ai đâm thất bại luôn luôn |
| name | 7866 Sicoli |
| background | #D6D6D6 |
| discovery_ref | |
| discovered | 13 October 1982 |
| discoverer | E. Bowell |
| discovery_site | Anderson Mesa Stn. |
| mpc_name | (7866) Sicoli |
| alt_names | 1982 TK1954 CT |
| 1959 OD | |
| named_after | Piero Sicoli |
| (discoverer of minor planets) | |
| mp_category | main-beltNysa |
| orbit_ref | |
| epoch | 4 September 2017 (JD 2458000.5) |
| uncertainty | 0 |
| observation_arc | 63.01 yr (23,016 days) |
| aphelion | 2.9392 AU |
| perihelion | 1.9165 AU |
| semimajor | 2.4279 AU |
| eccentricity | 0.2106 |
| period | 3.78 yr (1,382 days) |
| mean_anomaly | 112.12° |
| mean_motion | / day |
| inclination | 3.4801° |
| asc_node | 77.978° |
| arg_peri | 253.20° |
| dimensions | km |
| 6.34 km (calculated) | |
| albedo | 0.21 (assumed) |
| spectral_type | S |
| abs_magnitude | 13.313.4 |
1959 OD (discoverer of minor planets) 6.34 km (calculated)
7866 Sicoli, provisional designation , is a stony Nysa asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 13 October 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station near Flagstaff, Arizona. The asteroid was named after Italian astronomer Piero Sicoli.
Orbit and classification
Sicoli is a member of the stony subgroup of the Nysa family, one of the smaller families in the main-belt, named after its namesake, 44 Nysa. The body orbits the Sun in the inner main-belt at a distance of 1.9–2.9 AU once every 3 years and 9 months (1,382 days). Its orbit has an eccentricity of 0.21 and an inclination of 3° with respect to the ecliptic. The first precovery was taken at Palomar Mountain in 1954, extending the asteroid's observation arc by 28 years prior to its discovery.
Physical characteristics
Diameter and albedo
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Sicoli measures 6.3 kilometers in diameter and its surface has an albedo of 0.246, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.21 and calculates a diameter of 5.6 kilometers, based on an absolute magnitude of 13.3.
Lightcurves
As of 2016, no rotational lightcurve has been obtained for this asteroid and its rotation period and shape remain unknown.
Naming
This minor planet was named in honor of Italian astronomer Piero Sicoli (born 1954), a discoverer of minor planets and Observation Coordinator at the Sormano Astronomical Observatory in northern Italy. The official naming citation was published by the Minor Planet Center on 28 July 1999 (M.P.C. 35488).
References
This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.
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