2025 RB7 is an asteroid in the Aten orbit class. Its orbit takes it from 0.71 AU to 1.29 AU from the Sun; one orbit takes 364.4 days. Orbit from the JPL solution of 18 September 2025.
Where is it now
- Distance from Sun
- 1.284 AU
- True anomaly
- 188.93°
- Distance from Earth
- 0.597 AU
- As of
- 2 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
- 21h 19m 37s
- Declination
- +15° 59′ 41″
- Constellation
- Pegasus
- Distance from Earth
- 0.6 AU
- Elongation from the Sun
- 104.49° — 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
- 0.998 AU
- Eccentricity
- 0.2929
- Inclination
- 16.68°
- Orbital period
- 364.4 days
- Perihelion
- 0.706 AU
- Aphelion
- 1.291 AU
- Longitude of ascending node
- 323.93°
- Argument of periapsis
- 225.38°
- Epoch · J2000
- 2460933.5
- Orbit class · ATE
- Aten
- Earth MOID · 36.2 LD
- 0.093 AU
- Tisserand (Jupiter)
- 6.014
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 9).
- Observations used
- 9
- Data arc
- 2 days
- First observed
- 14 September 2025
- Last observed
- 16 September 2025
- Residual RMS
- 0.2 ″
- Solution · Otto Matic
- 18 September 2025
Visual & observation
- Absolute magnitude (H)
- 23.26
Discovery & classification
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB