2026 GH21 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 34.13 AU to 61.79 AU from the Sun; one orbit takes 332.2 years.
Where is it now
- Distance from Sun
- 35.394 AU
- True anomaly
- 327.21°
- Distance from Earth
- 36.315 AU
- As of
- 25 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
- 13h 31m 43s
- Declination
- -33° 03′ 50″
- Constellation
- Centaurus
- Distance from Earth
- 36.31 AU
- Elongation from the Sun
- 21.76° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
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
- 47.962 AU
- Eccentricity
- 0.2884
- Inclination
- 25.26°
- Orbital period
- 332.2 years
- Perihelion
- 34.132 AU
- Aphelion
- 61.793 AU
- Longitude of ascending node
- 333.15°
- Argument of periapsis
- 275.83°
- Epoch · J2000
- 2461200.5
- Orbit class · TNO
- Trans-Neptunian object
- Tisserand (Jupiter)
- 5.367
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 21
- Data arc
- 96 days
- First observed
- 8 April 2026
- Last observed
- 13 July 2026
- Residual RMS
- 0.16 ″
Visual & observation
- Absolute magnitude (H)
- 6.95
Discovery & classification
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB