Centaur
2025 NW457
(2025 NW457)
Where is it now
- Distance from Sun
- 2.929 AU
- True anomaly
- 78.8°
- 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
- 04h 51m 05s
- Declination
- +23° 56′ 30″
- Constellation
- Taurus
- Distance from Earth
- 2.57 AU
- Elongation from the Sun
- 101.28° — well clear of the Sun
Favours the northern hemisphere; low or below the horizon from far south.
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
- 5.875 AU
- Eccentricity
- 0.6614
- Inclination
- 1.66°
- Orbital period
- 14.24 years
- Perihelion
- 1.989 AU
- Aphelion
- 9.761 AU
- Longitude of ascending node
- 283.97°
- Argument of periapsis
- 51.72°
- Epoch · J2000
- 2461200.5
- Orbit class · CEN
- Centaur
- Tisserand (Jupiter)
- 2.479
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 9).
- Observations used
- 6
- Data arc
- 2 days
- First observed
- 12 July 2025
- Last observed
- 14 July 2025
- Residual RMS
- 0.15 ″
Visual & observation
- Absolute magnitude (H)
- 18.31
Discovery & classification
Centaur
Sources
- orbital elements: JPL SBDB