8116 Jeanperrin
8116 Jeanperrin, provisional designation, is a Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately in diameter. It was discovered on 17 April 1996, by Belgian astronomer Eric Elst at the La Silla Observatory in northern Chile. The likely stony S-type asteroid has a rotation period of 3.62 hours and a nearly round shape. It was named for French physicist and Nobel laureate Jean Baptiste Perrin. A minor-planet moon, a third the size of its primary, was discovered in 2007.
Orbit and classification
Jeanperrin is a member of the Flora family, a giant asteroid family and the largest family of stony asteroids in the main-belt.It orbits the Sun in the inner asteroid belt at a distance of 1.9–2.6 AU once every 3 years and 4 months. Its orbit has an eccentricity of 0.16 and an inclination of 5° with respect to the ecliptic. The body's observation arc begins with its first observations as at Anderson Mesa Station in November 1987, more than 8 years prior to its official discovery observation at La Silla.
Physical characteristics
Jeanperrin is an assumed S-type asteroid, which agrees with the overall spectral type for member of the Flora family.Rotation period
In October 2007, a rotational lightcurve of Jeanperrin was obtained from photometric observations by a large international collaboration of astronomers. Lightcurve analysis gave a rotation period of 3.6169 hours and a low brightness variation of 0.09 magnitude, indicative of a nearly spheroidal shape. Additional observations by Petr Pravec at Ondřejov Observatory in 2007 and 2017, rendered a nearly identical period of 3.6169 and 3.61692 hours with an amplitude of 0.09 and 0.10 magnitude, respectively.Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Jeanperrin measures between 3.66 and 4.797 kilometers in diameter and its surface has an albedo between 0.1841 and 0.437.The Collaborative Asteroid Lightcurve Link adopts Petr Pravec's revised WISE data, that is, an albedo of 0.1841 and a diameter of 4.80 kilometers based on an absolute magnitude of 14.05.