2020 BF5 is an asteroid in the Aten orbit class. Its orbit takes it from 0.73 AU to 1.23 AU from the Sun; one orbit takes 354.3 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.144 AU
- True anomaly
- 219.27°
- Distance from Earth
- 1.381 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
- 11h 06m 41s
- Declination
- +04° 36′ 37″
- Constellation
- Leo
- Distance from Earth
- 1.38 AU
- Elongation from the Sun
- 54.76° — 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
- 0.98 AU
- Eccentricity
- 0.2599
- Inclination
- 7.27°
- Orbital period
- 354.3 days
- Perihelion
- 0.725 AU
- Aphelion
- 1.234 AU
- Longitude of ascending node
- 130.39°
- Argument of periapsis
- 130.77°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 18.2 LD
- 0.0468 AU
- Tisserand (Jupiter)
- 6.142
Orbit quality
Orbit reasonably well determined (uncertainty code 5).
- Observations used
- 45
- Data arc
- 23 days
- First observed
- 21 January 2020
- Last observed
- 13 February 2020
- Residual RMS
- 0.57 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 25
Discovery & classification
Close approaches 139 on record
Top-down view of the ecliptic, Earth at the centre, for the 2044-10-18 06:20 UTC close approach of 2020 BF5. Catalogue miss distance 168.2 LD · 6.46 × 10⁷ km. The curve is the geocentric path from 2044-10-15 to 2044-10-21, 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 |
|---|---|---|---|---|
| 2040-09-15 05:52:00 | Venus | 0.0756 AU | 29.4 LD | 4.8 km/s |
| 2044-10-18 06:20:00 | Earth | 0.4321 AU | 168.2 LD | 21.2 km/s |
| 2045-10-09 22:46:00 | Earth | 0.2556 AU | 99.5 LD | 15.5 km/s |
| 2046-09-30 14:11:00 | Earth | 0.1148 AU | 44.7 LD | 9.9 km/s |
| 2047-08-01 11:06:00 | Venus | 0.0812 AU | 31.6 LD | 8.9 km/s |
| 2047-09-03 16:23:00 | Earth | 0.1721 AU | 67.0 LD | 6.5 km/s |
| 2048-07-25 10:05:00 | Earth | 0.2558 AU | 99.6 LD | 9.1 km/s |
| 2048-11-23 21:52:00 | Earth | 0.264 AU | 102.8 LD | 7 km/s |
| 2049-06-25 20:20:00 | Earth | 0.295 AU | 114.8 LD | 10.3 km/s |
| 2049-12-20 21:44:00 | Earth | 0.2675 AU | 104.1 LD | 7.6 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB