Английская Википедия:16765 Agnesi
16765 Agnesi, provisional designation Шаблон:Mp, is a stony Eunomia asteroid from the middle region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 16 October 1996, by Italian-American amateur astronomer Paul Comba at his private Prescott Observatory in Arizona, United States.[1] The asteroid was named after Italian mathematician Maria Gaetana Agnesi.[2]
Orbit and classification
Agnesi is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the central main-belt. It orbits the Sun at a distance of 2.3–2.9 AU once every 4 years and 3 months (1,553 days). Its orbit has an eccentricity of 0.11 and an inclination of 12° with respect to the ecliptic.[3] It was first observed by Haleakala–NEAT/GEODSS (Шаблон:Small), extending the asteroid's observation arc by 32 days prior to its official discovery observation.[1]
Physical characteristics
Diameter and albedo
According to the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Agnesi measures 4.1 kilometers in diameter and its surface has an albedo of 0.28,[4] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 – derived from 15 Eunomia, the family's largest member and namesake – and calculates a diameter of 3.8 kilometers.[5]
Lightcurves
A rotational lightcurve of Agnesi was obtained from photometric observations taken by astronomers at the Palomar Transient Factory in September 2013. Lightcurve analysis gave a rotation period of Шаблон:Val hours with a brightness variation of Шаблон:Val magnitude (Шаблон:Small).[6]
Naming
This minor planet was named in honor of Italian Maria Gaetana Agnesi (1718–1799), who was the first Western woman to write a widely translated mathematics handbook and the first woman appointed to a professorship at a university in 1750.[2] The official naming citation was published by the Minor Planet Center on 9 January 2001 (Шаблон:Small).[7]
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (15001)-(20000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
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- Английская Википедия
- Eunomia asteroids
- Discoveries by Paul G. Comba
- Named minor planets
- Astronomical objects discovered in 1996
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