Where is it now
- Distance from Sun
- 43.084 AU
- True anomaly
- 75.79°
- Distance from Earth
- 43.181 AU
- As of
- 20 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
- 08h 22m 42s
- Declination
- +18° 16′ 22″
- Constellation
- Cancer
- Distance from Earth
- 43.18 AU
- Elongation from the Sun
- 84.05° — well clear of the Sun
Favours the northern hemisphere; low or below the horizon from far south.
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
- 43.714 AU
- Eccentricity
- 0.0495
- Inclination
- 2.54°
- Orbital period
- 289 years
- Perihelion
- 41.55 AU
- Aphelion
- 45.878 AU
- Longitude of ascending node
- 276.64°
- Argument of periapsis
- 129.9°
- Epoch · J2000
- 2461200.5
- Orbit class · TNO
- Trans-Neptunian object
- Earth MOID · 15,784.7 LD
- 40.5597 AU
- Tisserand (Jupiter)
- 5.903
Orbit quality
Orbit reasonably well determined (uncertainty code 4).
- Observations used
- 48
- Data arc
- 20.38 years
- First observed
- 6 September 2005
- Last observed
- 21 January 2026
- Residual RMS
- 0.32 ″
- Solution · Otto Matic
- 5 June 2026
Visual & observation
- Absolute magnitude (H)
- 5.93
Discovery & classification
Also known as 2021 DF17
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB