2017 BU93 is an asteroid in the Aten orbit class. Its orbit takes it from 0.59 AU to 1.38 AU from the Sun; one orbit takes 355 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.235 AU
- True anomaly
- 146.1°
- Distance from Earth
- 1.727 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 45m 30s
- Declination
- +01° 32′ 19″
- Constellation
- Virgo
- Distance from Earth
- 1.73 AU
- Elongation from the Sun
- 44.76° — 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
- 0.981 AU
- Eccentricity
- 0.4029
- Inclination
- 22.4°
- Orbital period
- 355 days
- Perihelion
- 0.586 AU
- Aphelion
- 1.377 AU
- Longitude of ascending node
- 141.79°
- Argument of periapsis
- 213.5°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 64.5 LD
- 0.1657 AU
- Tisserand (Jupiter)
- 6.038
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 23
- Data arc
- 20 days
- First observed
- 29 January 2017
- Last observed
- 18 February 2017
- Residual RMS
- 0.73 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 23.17
Discovery & classification
Close approaches 48 on record
Top-down view of the ecliptic, Earth at the centre, for the 2048-02-02 16:10 UTC close approach of 2017 BU93. Catalogue miss distance 184.5 LD · 7.09 × 10⁷ km. The curve is the geocentric path from 2048-01-30 to 2048-02-05, 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 south 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 |
|---|---|---|---|---|
| 2030-05-20 06:25:00 | Venus | 0.118 AU | 45.9 LD | 18.2 km/s |
| 2048-02-02 16:10:00 | Earth | 0.474 AU | 184.5 LD | 27.4 km/s |
| 2049-01-27 10:27:00 | Earth | 0.3276 AU | 127.5 LD | 22.6 km/s |
| 2050-01-24 02:44:00 | Earth | 0.2055 AU | 80.0 LD | 18.2 km/s |
| 2051-01-24 22:44:00 | Earth | 0.1681 AU | 65.4 LD | 14.9 km/s |
| 2052-01-31 17:15:00 | Earth | 0.2325 AU | 90.5 LD | 13.6 km/s |
| 2053-02-09 19:03:00 | Earth | 0.3157 AU | 122.9 LD | 13.5 km/s |
| 2054-02-20 15:09:00 | Earth | 0.3855 AU | 150.0 LD | 13.6 km/s |
| 2055-03-03 22:04:00 | Earth | 0.4371 AU | 170.1 LD | 13.6 km/s |
| 2083-02-01 03:59:00 | Earth | 0.4373 AU | 170.2 LD | 26.3 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