Where is it now
- Distance from Sun
- 42.603 AU
- True anomaly
- 289.48°
- Distance from Earth
- 42.578 AU
- As of
- 2 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
- 18h 42m 11s
- Declination
- -15° 04′ 43″
- Constellation
- Scutum
- Distance from Earth
- 42.59 AU
- Elongation from the Sun
- 90.08° — well clear of the Sun
Favours the southern hemisphere; low or below the horizon from far north.
From your location
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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
- 43.156 AU
- Eccentricity
- 0.0352
- Inclination
- 7.99°
- Orbital period
- 283.5 years
- Perihelion
- 41.637 AU
- Aphelion
- 44.675 AU
- Longitude of ascending node
- 188.92°
- Argument of periapsis
- 163.21°
- Epoch · J2000
- 2461200.5
- Orbit class · TNO
- Trans-Neptunian object
- Earth MOID · 15,812.7 LD
- 40.6315 AU
- Tisserand (Jupiter)
- 5.821
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 1,059
- Data arc
- 71.27 years
- First observed
- 25 May 1954
- Last observed
- 31 August 2025
- Residual RMS
- 0.39 ″
- Solution · Otto Matic
- 6 June 2026
Physical properties
- Mean radius
- 545 km
- Mass
- 1.2 × 10²¹ kg
- Rotation period
- 8.84 hours
Visual & observation
- Geometric albedo
- 0.124
- Absolute magnitude (H)
- 2.4
Discovery & classification
- Discovered by
- Trujillo, C. A., Brown, M. E.
- Discovery date
- 4 June 2002
- Discovery site
- Palomar
Quaoar is the great force of creation in the diverse myths of the Tongva, the indigenous people of the Los Angeles basin. Quaoar has no form or gender and dances and sings Weywot, Sky Father, into existence. Together, they create Chehooit, Earth Mother, and the trio bring Tamit, Grandfather Sun, to life.
Also known as 50000 · 2002 LM60 · 50000 Quaoar (2002 LM60)
1 moons
| Weywot | 81 km | — | — | — | 12.4 days |
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB
- physical properties: NASA Planetary Fact Sheet
- visual properties: NASA Planetary Fact Sheet