1281 Jeanne ( ''prov. designation'': ) is a dark

asteroid An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere. ...

from the background population of the intermediate asteroid belt. It was discovered on 25 August 1933, by astronomer

Sylvain Arend Sylvain Julien Victor Arend (6 August 1902 – 18 February 1992) was a Belgian astronomer born in Robelmont, Luxembourg province, Belgium. His main interest was astrometry. Together with Georges Roland, he discovered the bright comet C/1956 R ...

at the Royal Observatory of Belgium in Uccle, who named it after his daughter, Jeanne. The likely

P-type asteroid P-type asteroids are asteroids that have low albedo and a featureless reddish spectrum. It has been suggested that they have a composition of organic rich silicates, carbon and anhydrous silicates, possibly with water ice in their interior. P-type ...

has a

rotation period The rotation period of a celestial object (e.g., star, gas giant, planet, moon, asteroid) may refer to its sidereal rotation period, i.e. the time that the object takes to complete a single revolution around its axis of rotation relative to the ...

of 15.2 hours and measures approximately in diameter.

Orbit and classification

''Jeanne'' is a non- family asteroid of the main belt's background population when applying the hierarchical clustering method to its

proper orbital elements __NOTOC__ The proper orbital elements or proper elements of an orbit are constants of motion of an object in space that remain practically unchanged over an astronomically long timescale. The term is usually used to describe the three quantitie ...

. It orbits the Sun in the

central Central is an adjective usually referring to being in the center of some place or (mathematical) object. Central may also refer to: Directions and generalised locations * Central Africa, a region in the centre of Africa continent, also known as ...

asteroid belt at a distance of 2.0–3.1 AU once every 4 years and 1 month (1,492 days;

semi-major axis In geometry, the major axis of an ellipse is its longest diameter: a line segment that runs through the center and both foci, with ends at the two most widely separated points of the perimeter. The semi-major axis (major semiaxis) is the long ...

of 2.56 AU). Its orbit has an eccentricity of 0.21 and an inclination of 7 ° with respect to the ecliptic. The asteroid was first identified in July 1904, as at

Heidelberg Observatory Heidelberg (; Palatine German: ') is a city in the German state of Baden-Württemberg, situated on the river Neckar in south-west Germany. As of the 2016 census, its population was 159,914, of which roughly a quarter consisted of students. ...

, where the body's observation arc begins in September 1929, almost four years prior to its official discovery observation at Uccle.

Naming

This minor planet was named after Jeanne Arend, daughter of Belgian discoverer

. The official naming citation was mentioned in '' The Names of the Minor Planets'' by Paul Herget in 1955 ().

Physical characteristics

''Jeanne'' has been characterized as both an X-type and

by the Wide-field Infrared Survey Explorer (WISE) and Pan-STARRS photometric survey, respectively.

Rotation period and poles

In May 2002, a rotational lightcurve of ''Jeanne'' was obtained from photometric observations by French amateur astronomer

Christophe Demeautis This is a list of minor-planet discoverers credited by the Minor Planet Center with the discovery of one or several minor planets (such as near-Earth and main-belt asteroids, Jupiter trojans and distant objects). , the discovery of 612,011 numb ...

. Lightcurve analysis gave a

of 15.18 hours with a brightness amplitude of 0.45 magnitude (). A lightcurve was also modeled using photometric data from the Lowell Photometric Database. It gave a concurring sidereal period of hours and two spin axes at (153.0°, 19°) and (338.0°, 32.0°) in ecliptic coordinates (λ, β).

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, ''Jeanne'' measures between 14.26 and 27.620 kilometers in diameter and its surface has an albedo between 0.053 and 0.17. The ''Collaborative Asteroid Lightcurve Link'' derives an albedo of 0.0863 and a diameter of 21.65 kilometers based on an absolute magnitude of 11.6.

References

External links

Lightcurve Database Query
(LCDB), at ''www.minorplanet.info''
Dictionary of Minor Planet Names
Google books

– ''Geneva Observatory'', Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000)
– Minor Planet Center * * {{DEFAULTSORT:Jeanne 001281 Discoveries by Sylvain Arend Minor planets named for people Named minor planets 19330825