Where is it now
- Distance from Sun
- 2.834 AU
- True anomaly
- 252.22°
- Distance from Earth
- 3.823 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
- 13h 23m 23s
- Declination
- -12° 42′ 14″
- Constellation
- Virgo
- Distance from Earth
- 3.82 AU
- Elongation from the Sun
- 6.09° — too close to the Sun to observe
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
- 2.766 AU
- Eccentricity
- 0.1656
- Inclination
- 5.23°
- Orbital period
- 4.6 years
- Perihelion
- 2.308 AU
- Aphelion
- 3.224 AU
- Longitude of ascending node
- 276.32°
- Argument of periapsis
- 36.97°
- Epoch · J2000
- 2461200.5
- Orbit class · MBA
- Main-belt asteroid
- Earth MOID · 504.2 LD
- 1.2957 AU
- Tisserand (Jupiter)
- 3.313
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 5,605
- Data arc
- 159.8 years
- First observed
- 21 June 1866
- Last observed
- 13 April 2026
- Residual RMS
- 0.43 ″
- Solution · Otto Matic
- 5 June 2026
Physical properties
- Mean radius
- 116 km
- Rotation period
- 6.04 hours
Visual & observation
- Geometric albedo
- 0.067
- Absolute magnitude (H)
- 7.24
- Colour index (B–V)
- 0.68
- Spectral type (SMASS)
- B
- Spectral type (Tholen)
- CF
- Colour index (U–B)
- 0.31
Discovery & classification
- Discovered by
- Peters, C. H. F.
- Discovery date
- 15 June 1866
- Discovery site
- Clinton
Also known as 88 · A866 LA · A903 PA · A906 BL
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