Centaur
2026 RM38
(2026 RM38)
Where is it now
- Distance from Sun
- 1.457 AU
- True anomaly
- 0.83°
- As of
- 17 September 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
- 00h 25m 23s
- Declination
- +05° 14′ 41″
- Constellation
- Pisces
- Distance from Earth
- 0.46 AU
- Elongation from the Sun
- 167.47° — near opposition — up most of the night
Visible from both hemispheres.
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
- 6.456 AU
- Eccentricity
- 0.7743
- Inclination
- 29.26°
- Orbital period
- 16.4 years
- Perihelion
- 1.457 AU
- Aphelion
- 11.455 AU
- Longitude of ascending node
- 180.73°
- Argument of periapsis
- 177.13°
- Epoch · J2000
- 2461200.5
- Orbit class · CEN
- Centaur
- Tisserand (Jupiter)
- 2.036
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 9).
- Observations used
- 49
- Data arc
- 4 days
- First observed
- 11 September 2026
- Last observed
- 15 September 2026
- Residual RMS
- 0.59 ″
Visual & observation
- Absolute magnitude (H)
- 20.05
Discovery & classification
Centaur
Sources
- orbital elements: JPL SBDB