Where is it now
- Distance from Sun
- 0.431 AU
- True anomaly
- 131.66°
- Distance from Earth
- 0.782 AU
- As of
- 20 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
- 12h 46m 52s
- Declination
- +10° 08′ 10″
- Constellation
- Virgo
- Distance from Earth
- 0.78 AU
- Elongation from the Sun
- 24.91° — 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
- 0.876 AU
- Eccentricity
- 0.895
- Inclination
- 25.76°
- Orbital period
- 299.7 days
- Perihelion
- 0.092 AU
- Aphelion
- 1.661 AU
- Longitude of ascending node
- 333.66°
- Argument of periapsis
- 324.39°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 35.1 LD
- 0.0901 AU
- Tisserand (Jupiter)
- 6.266
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 1,296
- Data arc
- 29 years
- First observed
- 10 February 1997
- Last observed
- 9 February 2026
- Residual RMS
- 0.5 ″
- Solution · Otto Matic
- 21 September 2026
Physical properties
- Mean radius
- 0.49 km
- Rotation period
- 10.57 hours
Visual & observation
- Geometric albedo
- 0.247
- Absolute magnitude (H)
- 17.49
Discovery & classification
- Discovered by
- LINEAR
- Discovery date
- 26 January 2000
- Discovery site
- Socorro
Also known as 2000 BD19
Close approaches 49 on record
Top-down view of the ecliptic, Earth at the centre, for the 2029-02-13 18:37 UTC close approach of 137924. Catalogue miss distance 42.7 LD · 1.64 × 10⁷ km. The curve is the geocentric path from 2029-02-10 to 2029-02-16, 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 north 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 |
|---|---|---|---|---|
| 2029-02-13 18:37:00 | Earth | 0.1098 AU | 42.7 LD | 30.6 km/s |
| 2034-02-17 02:49:00 | Merc | 0.0882 AU | 34.3 LD | 65 km/s |
| 2034-02-17 02:49:00 | Mercury | 0.0882 AU | 34.3 LD | 65 km/s |
| 2052-02-10 08:12:00 | Earth | 0.1105 AU | 43.0 LD | 34.4 km/s |
| 2056-04-14 13:09:00 | Merc | 0.0944 AU | 36.7 LD | 69.1 km/s |
| 2056-04-14 13:09:00 | Mercury | 0.0944 AU | 36.7 LD | 69.1 km/s |
| 2060-05-20 20:21:00 | Merc | 0.0978 AU | 38.1 LD | 59.2 km/s |
| 2060-05-20 20:21:00 | Mercury | 0.0978 AU | 38.1 LD | 59.2 km/s |
| 2061-02-14 00:28:00 | Earth | 0.11 AU | 42.8 LD | 30.5 km/s |
| 2082-07-17 01:11:00 | Mercury | 0.0895 AU | 34.8 LD | 64.4 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)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB