is a trans-Neptunian object on an eccentric orbit in the outermost region of the Solar System, approximately in diameter. It was discovered on 16 May 1999, by French astronomer Audrey Delsanti and Oliver Hainaut at

ESO The European Organisation for Astronomical Research in the Southern Hemisphere, commonly referred to as the European Southern Observatory (ESO), is an intergovernmental research organisation made up of 16 member states for ground-based ast ...

s La Silla Observatory in northern Chile. The very reddish object is a dwarf planet candidate and 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 11.7 hours.

Orbit and classification

The minor planet orbits the Sun at a distance of 34–65 AU once every 346 years (126,383 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 49.29 AU). Its orbit has an eccentricity of 0.31 and an inclination of 25 ° with respect to the ecliptic.

Numbering and naming

This minor planet was numbered 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 26 May 2002. As of 2019, it has not been named.

Physical characteristics

has two solutions of its

of 6 and 12 hours, respectively, and an albedo of 0.20.

References

External links

"TNOs are Cool": A Survey of the Transneptunian Region IV - Size/albedo characterization of 15 scattered disk and detached objects observed with ''Herschel'' Space Observatory-PACS

Minor Planet Center
Asteroid Lightcurve Database (LCDB)
query form

) * * {{DEFAULTSORT:1999 KR16 040314 Discoveries by Audrey C. Delsanti Discoveries by Olivier R. Hainaut 19990516