2006 RH120 is an asteroid in the Apollo orbit class. Its orbit takes it from 1.01 AU to 1.06 AU from the Sun; one orbit takes 383.6 days. Orbit from the JPL solution of 5 October 2026.
Where is it now
- Distance from Sun
- 1.008 AU
- True anomaly
- 12.37°
- Distance from Earth
- 0.555 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
- 09h 56m 18s
- Declination
- +13° 00′ 55″
- Constellation
- Leo
- Distance from Earth
- 0.55 AU
- Elongation from the Sun
- 75.58° — well clear of the Sun
Visible from both hemispheres.
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
- 1.033 AU
- Eccentricity
- 0.0245
- Inclination
- 0.59°
- Orbital period
- 383.6 days
- Perihelion
- 1.008 AU
- Aphelion
- 1.059 AU
- Longitude of ascending node
- 51.22°
- Argument of periapsis
- 9.95°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 6.4 LD
- 0.0164 AU
- Tisserand (Jupiter)
- 5.927
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 136
- Data arc
- 284 days
- First observed
- 11 September 2006
- Last observed
- 22 June 2007
- Residual RMS
- 0.43 ″
- Solution · Davide Farnocchia
- 5 October 2026
Physical properties
- Rotation period
- 0.05 hours
Visual & observation
- Absolute magnitude (H)
- 29.5
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 26 on record
Top-down view of the ecliptic, Earth at the centre, for the 2028-08-17 14:00 UTC close approach of 2006 RH120. Catalogue miss distance 10.5 LD · 4.05 × 10⁶ km. The curve is the geocentric path from 2028-08-14 to 2028-08-20, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2028-08-17 14:00:00 | Earth | 0.0271 AU | 10.5 LD | 0.1 km/s |
| 2028-10-08 03:00:00 | Earth | 0.0274 AU | 10.7 LD | 0.8 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB