886859 is an asteroid in the Aten orbit class. Its orbit takes it from 0.61 AU to 1.39 AU from the Sun; one orbit takes 364.8 days. Discovered 31 October 2021 by Maury, A., Attard, G.. Orbit from the JPL solution of 14 March 2026.
Where is it now
- Distance from Sun
- 1.078 AU
- True anomaly
- 123.37°
- Distance from Earth
- 0.104 AU
- As of
- 3 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
- 03h 10m 45s
- Declination
- -19° 34′ 35″
- Constellation
- Eridanus
- Distance from Earth
- 0.1 AU
- Elongation from the Sun
- 144.14° — well clear of the Sun
Favours the southern hemisphere; low or below the horizon from far north.
From your location
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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
- 0.999 AU
- Eccentricity
- 0.3933
- Inclination
- 20.3°
- Orbital period
- 364.8 days
- Perihelion
- 0.606 AU
- Aphelion
- 1.392 AU
- Longitude of ascending node
- 49.89°
- Argument of periapsis
- 227.28°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 37.9 LD
- 0.0973 AU
- Tisserand (Jupiter)
- 5.964
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 125
- Data arc
- 11.03 years
- First observed
- 11 November 2014
- Last observed
- 23 November 2025
- Residual RMS
- 0.66 ″
- Solution · Otto Matic
- 14 March 2026
Visual & observation
- Absolute magnitude (H)
- 23.37
Discovery & classification
- Discovered by
- Maury, A., Attard, G.
- Discovery date
- 31 October 2021
- Discovery site
- MAPS, San Pedro de
Also known as 2021 UN7
Close approaches 57 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-10-31 15:48 UTC close approach of 886859. Catalogue miss distance 40.7 LD · 1.57 × 10⁷ km. The curve is the geocentric path from 2027-10-28 to 2027-11-03, 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 |
|---|---|---|---|---|
| 2026-10-31 09:28:00 | Earth | 0.1024 AU | 39.8 LD | 14.8 km/s |
| 2027-10-31 15:48:00 | Earth | 0.1047 AU | 40.7 LD | 14.7 km/s |
| 2028-10-30 22:10:00 | Earth | 0.1077 AU | 41.9 LD | 14.6 km/s |
| 2029-10-31 06:03:00 | Earth | 0.1113 AU | 43.3 LD | 14.4 km/s |
| 2030-10-31 13:50:00 | Earth | 0.1157 AU | 45.0 LD | 14.3 km/s |
| 2031-10-31 22:33:00 | Earth | 0.121 AU | 47.1 LD | 14.1 km/s |
| 2032-10-31 08:39:00 | Earth | 0.1267 AU | 49.3 LD | 13.9 km/s |
| 2033-10-31 18:23:00 | Earth | 0.1331 AU | 51.8 LD | 13.8 km/s |
| 2034-07-22 11:02:00 | Venus | 0.1344 AU | 52.3 LD | 13.6 km/s |
| 2034-11-01 05:57:00 | Earth | 0.1405 AU | 54.7 LD | 13.6 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