16765 Agnesi

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16765 Agnesi
Discovery [1]
Discovered by P. G. Comba
Discovery site Prescott Observatory
Discovery date 16 October 1996
Designations
MPC designation 16765 Agnesi
Named after
Maria Agnesi
(mathematician)[2]
1996 UA
main-belt · Eunomia[3]
Orbital characteristics[1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 19.25 yr (7,032 days)   
Aphelion 2.9142 AU
Perihelion 2.3401 AU
2.6271 AU
Eccentricity 0.1092
4.26 yr (1,555 days)
179.48°
Inclination 12.256°
17.787°
314.33°
Physical characteristics
Dimensions 3.84 km (calculated)[3]
7.5458±0.0034 h[4]
0.21 (assumed)[3]
S[3]
13.8[1]

16765 Agnesi, provisional designation 1996 UA, is a stony asteroid from the middle region of the asteroid belt, about 4 kilometers in diameter. It was discovered on 16 October 1996, by Italian-American amateur astronomer Paul Comba at his private Prescott Observatory in the U.S. state of Arizona.[5]

The asteroid is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.3–2.9 AU once every 4 years and 3 months (1,555 days). Its orbit is tilted by 12 degrees to the plane of the ecliptic and shows an eccentricity of 0.11.[1] A photometric light-curve analysis at the Palomar Transient Factory Survey in 2013 has rendered a rotation period of 7.5458±0.0034 hours with a brightness amplitude of 0.31 in magnitude.[4] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 for the asteroid's surface, identical the to albedo of the family's namesake, 15 Eunomia.[3]

The minor planet was named in honour of Italian Maria Gaetana Agnesi (1718–1799), who was the first woman in the Western world to write a widely translated mathematics handbook and the first woman appointed to a professorship at a university in 1750.[2]

References

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External links


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