2013 BS45 is an asteroid in the Aten orbit class. Its orbit takes it from 0.91 AU to 1.07 AU from the Sun; one orbit takes 360.6 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.043 AU
- True anomaly
- 227.85°
- Distance from Earth
- 1.044 AU
- As of
- 2 November 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 44m 38s
- Declination
- +08° 14′ 46″
- Constellation
- Leo
- Distance from Earth
- 1.04 AU
- Elongation from the Sun
- 61.58° — 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
- 0.992 AU
- Eccentricity
- 0.0837
- Inclination
- 0.77°
- Orbital period
- 360.6 days
- Perihelion
- 0.908 AU
- Aphelion
- 1.075 AU
- Longitude of ascending node
- 83.41°
- Argument of periapsis
- 150.74°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 4.4 LD
- 0.0114 AU
- Tisserand (Jupiter)
- 6.118
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 98
- Data arc
- 375 days
- First observed
- 20 January 2013
- Last observed
- 30 January 2014
- Residual RMS
- 0.32 ″
- Solution · Otto Matic
- 15 April 2021
Physical properties
- Rotation period
- 0.03 hours
Visual & observation
- Absolute magnitude (H)
- 25.9
Discovery & classification
Close approaches 60 on record
Top-down view of the ecliptic, Earth at the centre, for the 2083-09-20 01:34 UTC close approach of 2013 BS45. Catalogue miss distance 168.6 LD · 6.48 × 10⁷ km. The curve is the geocentric path from 2083-09-17 to 2083-09-23, 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. 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 |
|---|---|---|---|---|
| 2083-09-20 01:34:00 | Earth | 0.4331 AU | 168.6 LD | 15.8 km/s |
| 2084-09-16 07:44:00 | Earth | 0.358 AU | 139.3 LD | 13.5 km/s |
| 2085-09-13 10:57:00 | Earth | 0.2836 AU | 110.4 LD | 11.3 km/s |
| 2086-09-10 19:01:00 | Earth | 0.2106 AU | 82.0 LD | 9.1 km/s |
| 2087-09-08 09:46:00 | Earth | 0.1399 AU | 54.4 LD | 7 km/s |
| 2088-09-05 01:29:00 | Earth | 0.0743 AU | 28.9 LD | 5 km/s |
| 2089-09-03 04:35:00 | Earth | 0.0234 AU | 9.1 LD | 3.4 km/s |
| 2090-09-02 17:36:00 | Earth | 0.0165 AU | 6.4 LD | 3.2 km/s |
| 2091-09-04 12:34:00 | Earth | 0.056 AU | 21.8 LD | 4.5 km/s |
| 2092-09-06 02:27:00 | Earth | 0.1176 AU | 45.8 LD | 6.3 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)
- orbital elements: JPL SBDB