1999 OZ3
{{Infobox planet
| name = 1999 OZ3
| discoverer = J. J. Kavelaars
B. Gladman
M. J. Holman
J. M. Petit
| discovered = 21 July 1999
| mp_category = [[Trans-Neptunian object|TNO] · classical Kuiper belt object
| aphelion = 38.440 AU
| perihelion = 49.765 AU
| semimajor = 44.100 AU
| eccentricity = 0,128
| inclination = 2,5°
| dimensions = 146 km
| mean_diameter = 146 km
| abs_magnitude = 7,4
}}
1999 OZ3, also written 1999 OZ3, is a trans-Neptunian object located in the Kuiper belt. It is classified as a classical Kuiper belt object and belongs to the cold population. It has an aphelion of 49 AU and a perihelion of 38 AU. It is unlikely to be classified as a dwarf planet as it measures about 146 km in diameter. It was discovered on 21 July 1999 by astronomers on Mauna Kea.[1]
Discovery
1999 OZ3 was discovered on 21 July 1999 by the astronomers JJ Kavelaars, B. Gladman, MJ Holman and J.-M Petit.[2]
Orbit and classification
1999 OZ3 orbits the sun at distances varying from 38-49 AU (semi-major axis of 44 AU). It has an eccentricity of 0.128 and an orbital inclination of 10° respective to the elliptic. Its observation arc began with observations at Mauna Kea in 1999. Johnston's Archive and the Minor Planet Center qualify it as a cubewano, a trans-Neptunian object in the Kuiper belt with a low eccentricity to not produce orbital resonance with Neptune. It belongs to the cold population due to its low eccentricity and inclination.[1][2]
Physical characteristics
Based on a conventional magnitude-to-diameter conversion, 1999 OZ3 measures 134 km in diameter with an albedo of 0.05. Johnston's Archive and Michael E. Brown give it diameters of perhaps 110 km and 114 km. It is unlikely to be classified as a dwarf planet for its size estimated at 123 km. As of 2021, no spectrogram nor a rotational lightcurve has been obtained from color indices nor photometric observations. The body's color, rotational period, pole, and shape remain unknown.
Numbering and naming
As of 2018, the Minor Planet Center has not numbered nor named the minor planet.
See also
References
- ↑ 1.0 1.1 "List of Known Trans-Neptunian Objects".
- ↑ 2.0 2.1 "List Of Transneptunian Objects". The Minor Planet Center (MPC). Retrieved 23 July 2014.
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