Where is it now
- Distance from Sun
- 2.414 AU
- True anomaly
- 100.35°
- Distance from Earth
- 2.78 AU
- As of
- 11 October 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 24m 58s
- Declination
- +10° 40′ 02″
- Constellation
- Leo
- Distance from Earth
- 2.78 AU
- Elongation from the Sun
- 58.88° — near the Sun — look low at dusk or dawn
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
- 2.426 AU
- Eccentricity
- 0.2023
- Inclination
- 14.74°
- Orbital period
- 3.78 years
- Perihelion
- 1.935 AU
- Aphelion
- 2.916 AU
- Longitude of ascending node
- 138.61°
- Argument of periapsis
- 239.73°
- Epoch · J2000
- 2461200.5
- Orbit class · MBA
- Main-belt asteroid
- Earth MOID · 379.7 LD
- 0.9756 AU
- Tisserand (Jupiter)
- 3.438
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 6,770
- Data arc
- 177.4 years
- First observed
- 5 September 1848
- Last observed
- 16 February 2026
- Residual RMS
- 0.42 ″
- Solution · Otto Matic
- 5 June 2026
Physical properties
- Mean radius
- 93 km
- Rotation period
- 7.27 hours
Visual & observation
- Geometric albedo
- 0.268
- Absolute magnitude (H)
- 5.62
- Colour index (B–V)
- 0.82
- Spectral type (SMASS)
- S
- Spectral type (Tholen)
- S
- Colour index (U–B)
- 0.4
Discovery & classification
- Discovered by
- Hencke, K. L.
- Discovery date
- 1 July 1847
- Discovery site
- Driesen
Also known as 6 · A847 NA · 1947 JB
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB