Английская Википедия:31249 Renéefleming

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Шаблон:Use dmy dates Шаблон:Infobox planet

31249 Renéefleming, provisional designation Шаблон:Mp, is a dark Zhongguo asteroid from the outermost region of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 27 February 1998, by astronomers with the ODAS survey conducted at the CERGA Observatory near Caussols, France.[1] The presumed C-type asteroid has a short rotation period of 3.34 hours.[2] It was named for American soprano Renée Fleming.[1]

Orbit and classification

Renéefleming is a non-family asteroid from the main belt's background population,[3][4] and a member of the small group of Zhongguo asteroids,[5] located in the Hecuba gap and locked in a 2:1 mean-motion resonance with the gas giant Jupiter. Contrary to the nearby Griqua group, the orbits of the Zhongguos are stable over half a billion years.[5]

It orbits the Sun in the outer main-belt at a distance of 2.4–4.1 AU once every 5 years and 10 months (2,137 days; semi-major axis of 3.25 AU). Its orbit has an eccentricity of 0.27 and an inclination of 2° with respect to the ecliptic.[6] The body's observation arc begins with its first observations at Mount Wilson Observatory in April 1934, almost 64 years prior to its official discovery observation at Caussols.[1]

Physical characteristics

Renéefleming is an assumed C-type asteroid,[2] which agrees with the body's albedo (see below).

Rotation period

In December 2014, a rotational lightcurve of Renéefleming was obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a short rotation period of 3.34 hours with a brightness amplitude of 0.12 magnitude (Шаблон:Small).[7]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Renéefleming measures 6.973 kilometers in diameter and its surface has an albedo of 0.053,[8][9] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 6.08 kilometers based on an absolute magnitude of 14.81.[2]

Numbering and naming

This minor planet was numbered by the Minor Planet Center (MPC) on 30 November 2001, after its orbit had sufficiently been secured (Шаблон:Small).[10] It was named after American soprano Renée Fleming (born 1959) known for her roles in classical operas by Richard Strauss, Mozart, Handel, Verdi and Dvorak, as well as more modern pieces.[1] The official naming citation was published by the MPC on 29 May 2018 (Шаблон:Small).[10]

References

Шаблон:Reflist

External links

Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control

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