2025 YU11 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.95 AU to 1.12 AU from the Sun; one orbit takes 382.2 days. Orbit from the JPL solution of 12 January 2026.
Where is it now
- Distance from Sun
- 0.969 AU
- True anomaly
- 47.35°
- Distance from Earth
- 0.291 AU
- As of
- 3 November 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
- 20h 04m 09s
- Declination
- -17° 06′ 40″
- Constellation
- Sagittarius
- Distance from Earth
- 0.29 AU
- Elongation from the Sun
- 77.35° — well clear of the Sun
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
- 1.031 AU
- Eccentricity
- 0.0826
- Inclination
- 0.96°
- Orbital period
- 382.2 days
- Perihelion
- 0.946 AU
- Aphelion
- 1.116 AU
- Longitude of ascending node
- 289.54°
- Argument of periapsis
- 47.43°
- Epoch · J2000
- 2461030.5
- Orbit class · APO
- Apollo
- Earth MOID · 4.0 LD
- 0.0103 AU
- Tisserand (Jupiter)
- 5.936
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 9).
- Observations used
- 12
- Data arc
- 24 hours
- First observed
- 21 December 2025
- Last observed
- 22 December 2025
- Residual RMS
- 0.09 ″
- Solution · Otto Matic
- 12 January 2026
Visual & observation
- Absolute magnitude (H)
- 27.72
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB