7517 Alisondoane ( ''prov. designation'': ) is a dark background asteroid from the inner regions of the asteroid belt. It was discovered on 3 January 1989, by Japanese amateur astronomer

Takuo Kojima is a Japanese amateur astronomer and discoverer of minor planet According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a plan ...

at the YGCO Chiyoda Station in the northern Kantō region of Japan. The carbonaceous C-type asteroid 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 9.7 hours and measures approximately in diameter. It was named after Alison Doane (1958–2017), curator of astronomical photographs at the Harvard College Observatory.

Orbit and classification

''Alisondoane'' is a non-

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

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

inner Interior may refer to: Arts and media * ''Interior'' (Degas) (also known as ''The Rape''), painting by Edgar Degas * ''Interior'' (play), 1895 play by Belgian playwright Maurice Maeterlinck * ''The Interior'' (novel), by Lisa See * Interior de ...

main-belt at a distance of 1.8–3.1 AU once every 3 years and 10 months (1,397 days). Its orbit has an eccentricity of 0.26 and an

inclination Orbital inclination measures the tilt of an object's orbit around a celestial body. It is expressed as the angle between a Plane of reference, reference plane and the orbital plane or Axis of rotation, axis of direction of the orbiting object ...

of 6 ° with respect to the ecliptic.

Naming

This

minor planet According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor ...

was named in honor of Alison Doane (1958–2017), curator of astronomical photographs at the Harvard College Observatory. She was also principal oboe with the

Boston Philharmonic Orchestra The Boston Philharmonic Orchestra (not to be confused with the Boston Symphony Orchestra) is a semi-professional orchestra based in Boston, Massachusetts, United States. It was founded in 1979. Their concerts take place at New England Conserv ...

from 1982 to 2001. The was published by the

Minor Planet Center The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Function ...

on 25 December 2015 ().

Physical characteristics

''Alisondoane'' has been characterized as a carbonaceous C-type asteroid by PanSTARRS photometric survey, as well as by the

Sloan Digital Sky Survey The Sloan Digital Sky Survey or SDSS is a major multi-spectral imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point Observatory in New Mexico, United States. The project began in 2000 a ...

(SDSS).

Lightcurves

A rotational lightcurve analysis by Czech astronomer

Petr Pravec Petr Pravec (born September 17, 1967) is a Czech astronomer and a discoverer of minor planets, born in Třinec, Czech Republic. Pravec is a prolific discoverer of binary asteroids, expert in photometric observations and rotational lightcurves a ...

in 2007 rendered a

of hours with a high brightness amplitude of 1.13 in magnitude (). A modeled lightcurves using photometric data from various sources, gave a sidereal period of hours and two spin axes of (123.0°, −51.0°) and (314.0°, −60.0°) in ecliptic coordinates (λ, β).

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and NASA's

Wide-field Infrared Survey Explorer Wide-field Infrared Survey Explorer (WISE, observatory code C51, Explorer 92 and SMEX-6) is a NASA infrared astronomy space telescope in the Explorers Program. It was launched in December 2009, and placed in hibernation mode in February 2011, ...

with its subsequent NEOWISE mission, ''Alisondoane'' measures between 8.52 and 9.99 kilometers in diameter and its surface has an

albedo Albedo (; ) is the measure of the diffuse reflection of sunlight, solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident radiation, to 1, corresponding to a body ...

between 0.04 and 0.122. The ''Collaborative Asteroid Lightcurve Link'' (CALL) calculates a smaller diameter of 5.16 kilometers based on an assumed albedo of 0.18 for an X-type asteroid.

Notes

References

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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 (5001)-(10000)
– Minor Planet Center * * {{DEFAULTSORT:Alisondoane 007517 Discoveries by Takuo Kojima Named minor planets 19890103