Where is it now
- Distance from Sun
- 2.779 AU
- True anomaly
- 146.71°
- Distance from Earth
- 3.13 AU
- As of
- 21 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
- 10h 04m 27s
- Declination
- +14° 32′ 46″
- Constellation
- Leo
- Distance from Earth
- 3.12 AU
- Elongation from the Sun
- 61.09° — 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
- 2.363 AU
- Eccentricity
- 0.2355
- Inclination
- 9.31°
- Orbital period
- 3.63 years
- Perihelion
- 1.807 AU
- Aphelion
- 2.92 AU
- Longitude of ascending node
- 327.49°
- Argument of periapsis
- 15.19°
- Epoch · J2000
- 2461200.5
- Orbit class · MBA
- Main-belt asteroid
- Earth MOID · 310.9 LD
- 0.7989 AU
- Tisserand (Jupiter)
- 3.494
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 5,570
- Data arc
- 160.6 years
- First observed
- 25 August 1865
- Last observed
- 9 April 2026
- Residual RMS
- 0.37 ″
- Solution · Otto Matic
- 5 June 2026
Physical properties
- Mean radius
- 40 km
- Rotation period
- 23.56 hours
Visual & observation
- Geometric albedo
- 0.053
- Absolute magnitude (H)
- 9.33
- Colour index (B–V)
- 0.73
- Spectral type (SMASS)
- Ch
- Spectral type (Tholen)
- G
- Colour index (U–B)
- 0.45
Discovery & classification
- Discovered by
- Luther, R.
- Discovery date
- 25 August 1865
- Discovery site
- Dusseldorf
Also known as 84 · A865 QA · 1974 VJ3
Sources
- visual 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