Where is it now
- Distance from Sun
- 38.722 AU
- True anomaly
- 82.5°
- Distance from Earth
- 39.551 AU
- As of
- 17 October 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 11h 42m 36s
- Declination
- +10° 14′ 15″
- Constellation
- Virgo
- Distance from Earth
- 39.54 AU
- Elongation from the Sun
- 34.12° — near the Sun — look low at dusk or dawn
Visible from both hemispheres.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 41.636 AU
- Eccentricity
- 0.2107
- Inclination
- 10.02°
- Orbital period
- 268.7 years
- Perihelion
- 32.863 AU
- Aphelion
- 50.408 AU
- Longitude of ascending node
- 119.99°
- Argument of periapsis
- 329.05°
- Epoch · J2000
- 2461200.5
- Orbit class · TNO
- Trans-Neptunian object
- Earth MOID · 12,407.9 LD
- 31.8827 AU
- Tisserand (Jupiter)
- 5.571
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 198
- Data arc
- 25.17 years
- First observed
- 11 February 1999
- Last observed
- 14 April 2024
- Residual RMS
- 0.68 ″
- Solution · Otto Matic
- 4 June 2024
Visual & observation
- Absolute magnitude (H)
- 6.91
Discovery & classification
- Discovered by
- Luu, J. X., Trujillo, C. A., Jewitt, D. C.
- Discovery date
- 11 February 1999
- Discovery site
- Mauna Kea
Also known as 1999 CL158
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB