2001 KY76
| Discovery[1] | |
|---|---|
| Discovered by | Marc W. Buie[1] |
| Discovery site | Cerro Tololo Observatory[1] |
| Discovery date | 23 May 2001 |
| Designations | |
| trans-Neptunian object[2] · plutino[1][3] · distant[1] | |
| Adjectives | none |
| Orbital characteristics[2] | |
| Epoch 17 October 2024 2460600.5 | |
| Observation arc | 7713 days (21.12 years) |
| Aphelion | 48.498 AU |
| Perihelion | 30.028 AU |
| 39.263 AU | |
| Eccentricity | 0.235 |
| 89863.5 days (246.0 years) | |
| Inclination | 3.975° |
| Earth MOID | 29.0955 AU |
| Jupiter MOID | 25.0649 AU |
| Physical characteristics | |
| Dimensions | 283 km[4] 265 km[5] |
| Albedo | 4%[5] |
| 6.17[2] | |
2001 KY76, also written 2001 KY76, is a trans-Neptunian object from the Kuiper belt. It is classified as a plutino, a minor planet locked in a 2:3 mean-motion orbital resonance with the planet Neptune.[1][3] It was discovered on May 23, 2001, by Marc W. Buie in the Cerro Tololo Observatory. The dwarf planet candidate measures approximately 285 km in diameter.[2][4]
Orbit and classification
[edit]2001 KY76 orbits the sun at a distance of 30–48.2 AU per 246.0 years (89863.5 days, semi-major axis of 39.2 AU). Its orbit has an eccentricity of 0.235 and an inclination of 3.975° respective to the elliptic. Its observation arc began with Cerro Tololo Observatories in 2001.[2]
2001 KY76 is a trans-Neptunian object and belongs to the plutinos, a large group of objects named after their largest member, Pluto. These objects are in a 2:3 mean-motion orbital resonance with the planet Neptune meaning, for two orbits a plutino makes, Neptune orbits three times, and are therefore protected from Neptune's scattering effect. Plutinos are located in the inner ridge of the Kuiper belt, a disk of mostly non-resonant trans-Neptunian objects.[1][3]
Numbering and naming
[edit]As of 2018, the Minor Planet Center has neither numbered for named this object. According to naming conventions, it will get a mythological name associated with the underworld.[1][3]
Physical characteristics
[edit]Color and rotation period
[edit]As of 2021, no spectral type and color indices nor a rotational lightcurve has been obtained from spectroscopic or photometric observations. The body's color, rotation period, pole, and shape remain unknown.
Diameter and albedo
[edit]According to Johnston's Archive and Michael E. Brown, 2001 KY76 measures approximately 283 km and 265 km in diameter with a geometric albedo of 4%.[4] On his website, 2001 KY76 is a "possible" dwarf planet, which is the category with the lowest certainty in his 5-class taxonomic system.[5]
See also
[edit]References
[edit]- ^ a b c d e f g h "2020 XL5". Minor Planet Center. International Astronomical Union. Retrieved 5 February 2021.
- ^ a b c d e Cite error: The named reference
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