• Source: 1239 Queteleta

1239 Queteleta (kətlɛta), provisional designation 1932 CB, is a dark background asteroid from the central regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 4 February 1932, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named after Adolphe Quetelet, a Belgian astronomer and mathematician.




Discovery


Queteleta was discovered on 4 February 1932, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. It was independently discovered by Louis Boyer at Algiers Observatory, Algeria, on the same night and by George Van Biesbroeck at Yerkes Observatory, United States, on 13 February 1932. The Minor Planet Center only recognizes the first mentioned discoverer.




Orbit and classification


Queteleta is a non-family asteroid from the main belt's background population. It orbits the Sun in the central main-belt at a distance of 2.0–3.3 AU once every 4 years and 4 months (1,585 days; semi-major axis of 2.66 AU). Its orbit has an eccentricity of 0.23 and an inclination of 2° with respect to the ecliptic. The body's observation arc begins at with its official discovery observation at Uccle in 1932.




Physical characteristics


The asteroid's spectral type has not been determined, but its low albedo (see below) is typical for that of a carbonaceous C-type asteroid.




= Diameter and albedo

=
According to the surveys carried out by the Infrared Astronomical Satellite IRAS and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Queteleta measures 15.94 and 18.032 kilometers in diameter and its surface has an albedo of 0.0695 and 0.051, respectively.




= Rotation period, poles and shape

=
As of 2018, no rotational lightcurve of Queteleta has been obtained from photometric observations. The asteroid's rotation period, shape and poles remain unknown.




Naming


This minor planet was named after Belgian astronomer and mathematician Adolphe Quetelet (1796–1874), whose research also encompassed several other scientific disciplines such as statistics, demography, sociology, criminology and the history of science. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 114). He was also honored by the lunar crater Quetelet.




References






External links


Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
1239 Queteleta at AstDyS-2, Asteroids—Dynamic Site
Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
1239 Queteleta at the JPL Small-Body Database

Kata Kunci Pencarian:

• 1239 Queteleta
• Eugène Joseph Delporte
• Quetelet (crater)
• List of minor planets: 1001–2000
• Meanings of minor-planet names: 1001–2000
• Adolphe Quetelet
• List of minor planets named after people
• 1240 Centenaria
• 1238 Predappia
• List of named minor planets: 1000–1999