2017 BB30 is an asteroid in the Aten orbit class. Its orbit takes it from 0.79 AU to 1.17 AU from the Sun; one orbit takes 355.1 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 0.974 AU
- True anomaly
- 261.32°
- Distance from Earth
- 1.476 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 58m 59s
- Declination
- -00° 26′ 45″
- Constellation
- Virgo
- Distance from Earth
- 1.47 AU
- Elongation from the Sun
- 40.84° — 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.
Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.
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
- 0.1903
- Inclination
- 2.98°
- Orbital period
- 355.1 days
- Perihelion
- 0.795 AU
- Aphelion
- 1.168 AU
- Longitude of ascending node
- 303.06°
- Argument of periapsis
- 293.27°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 3.7 LD
- 0.0095 AU
- Tisserand (Jupiter)
- 6.153
Orbit quality
Orbit reasonably well determined (uncertainty code 5).
- Observations used
- 23
- Data arc
- 7 days
- First observed
- 26 January 2017
- Last observed
- 2 February 2017
- Residual RMS
- 0.57 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 25.2
Discovery & classification
Close approaches 62 on record
Top-down view of the ecliptic, Earth at the centre, for the 2045-09-22 08:18 UTC close approach of 2017 BB30. Catalogue miss distance 154.7 LD · 5.95 × 10⁷ km. The curve is the geocentric path from 2045-09-19 to 2045-09-25, 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 |
|---|---|---|---|---|
| 2029-01-27 21:47:00 | Venus | 0.1446 AU | 56.3 LD | 3.6 km/s |
| 2045-09-22 08:18:00 | Earth | 0.3974 AU | 154.7 LD | 18 km/s |
| 2046-09-15 10:42:00 | Earth | 0.2294 AU | 89.3 LD | 12.9 km/s |
| 2047-06-30 06:51:00 | Venus | 0.0824 AU | 32.1 LD | 3.7 km/s |
| 2047-09-08 18:26:00 | Earth | 0.0659 AU | 25.6 LD | 7.8 km/s |
| 2048-09-16 15:08:00 | Earth | 0.1132 AU | 44.1 LD | 3.5 km/s |
| 2049-06-25 03:15:00 | Earth | 0.1995 AU | 77.6 LD | 6.2 km/s |
| 2049-11-06 18:18:00 | Earth | 0.1826 AU | 71.1 LD | 5.2 km/s |
| 2050-05-21 05:13:00 | Earth | 0.2205 AU | 85.8 LD | 7 km/s |
| 2050-12-11 04:59:00 | Earth | 0.1753 AU | 68.2 LD | 5.2 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