Where is it now
- Distance from Sun
- 2.755 AU
- True anomaly
- 14.32°
- Distance from Earth
- 3.197 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 42m 12s
- Declination
- +13° 27′ 28″
- Constellation
- Leo
- Distance from Earth
- 3.19 AU
- Elongation from the Sun
- 55.81° — 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
- 3.094 AU
- Eccentricity
- 0.1125
- Inclination
- 7.48°
- Orbital period
- 5.44 years
- Perihelion
- 2.746 AU
- Aphelion
- 3.442 AU
- Longitude of ascending node
- 128.57°
- Argument of periapsis
- 342.8°
- Epoch · J2000
- 2461200.5
- Orbit class · MBA
- Main-belt asteroid
- Earth MOID · 686.3 LD
- 1.7635 AU
- Tisserand (Jupiter)
- 3.201
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 12,102
- Data arc
- 165.7 years
- First observed
- 9 July 1860
- Last observed
- 20 March 2026
- Residual RMS
- 0.29 ″
- Solution · Otto Matic
- 5 June 2026
Physical properties
- Mean radius
- 152 km
- Rotation period
- 5.63 hours
Visual & observation
- Geometric albedo
- 0.057
- Absolute magnitude (H)
- 6.65
- Colour index (B–V)
- 0.68
- Spectral type (SMASS)
- C
- Spectral type (Tholen)
- CF
- Colour index (U–B)
- 0.34
Discovery & classification
- Discovered by
- Goldschmidt, H.
- Discovery date
- 4 February 1858
- Discovery site
- Paris
Also known as 52 · A858 CA · 1948 LA
Close approaches 10 on record
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2057-02-24 07:20:00 | Juptr | 1.6924 AU | 658.6 LD | 2.7 km/s |
| 2067-02-03 15:53:00 | Juptr | 1.9502 AU | 759.0 LD | 2.8 km/s |
| 2117-10-14 09:24:00 | Juptr | 1.8606 AU | 724.1 LD | 3.1 km/s |
| 2127-09-14 23:01:00 | Juptr | 1.7074 AU | 664.5 LD | 2.6 km/s |
| 2188-04-27 01:33:00 | Juptr | 1.7338 AU | 674.8 LD | 2.7 km/s |
| 2198-04-03 02:04:00 | Juptr | 1.8079 AU | 703.6 LD | 2.7 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)
- 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