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Asteroid Near-Earth

876653

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876653 (2008 UX)

Where is it now

Distance from Sun
0.375 AU
True anomaly
284.25°
Distance from Earth
1.093 AU
As of
17 October 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.

Sun Earth — 0.996 AU from the Sun Earth 876653 — 0.375 AU from the Sun 876653
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 876653 is 1.093 AU from Earth today (9.1 light-minutes).

In the sky

Right ascension
12h 39m 30s
Declination
+03° 15′ 23″
Constellation
Virgo
Distance from Earth
1.11 AU
Elongation from the Sun
18.77° — too close to the Sun to observe

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.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

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
0.817 AU
Eccentricity
0.6812
Inclination
21.75°
Orbital period
269.9 days
Perihelion
0.261 AU
Aphelion
1.374 AU
Longitude of ascending node
37.53°
Argument of periapsis
158.15°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 30.6 LD
0.0785 AU
Tisserand (Jupiter)
6.905

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
186
Data arc
17.08 years
First observed
21 October 2008
Last observed
20 November 2025
Residual RMS
0.48 ″
Solution · Otto Matic
25 August 2026

Visual & observation

Absolute magnitude (H)
20.89

Discovery & classification

Discovered by
Mount Lemmon Survey
Discovery date
21 October 2008
Discovery site
Mount Lemmon

Also known as 2008 UX

Aten Near-Earth Object

Close approaches 70 on record

Flyby geometry
Ecliptic flyby of 876653 at 2028-11-10 03:23 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-11-10 03:23 UTC close approach of 876653. Catalogue miss distance 55.6 LD · 2.14 × 10⁷ km. The curve is the geocentric path from 2028-11-07 to 2028-11-13, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 55.6 LD · 2.14 × 10⁷ km 2028-11-10 03:23 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-11-10 03:23 UTC close approach of 876653. Catalogue miss distance 55.6 LD · 2.14 × 10⁷ km. The curve is the geocentric path from 2028-11-07 to 2028-11-13, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2028-11-10 03:23:00 Earth 0.1429 AU 55.6 LD 18.8 km/s
2030-06-30 21:35:00 Merc 0.0889 AU 34.6 LD 40.1 km/s
2030-06-30 21:35:00 Mercury 0.0889 AU 34.6 LD 40.1 km/s
2031-11-08 22:45:00 Earth 0.1327 AU 51.6 LD 24.6 km/s
2041-07-31 18:58:00 Merc 0.0877 AU 34.1 LD 32.7 km/s
2041-07-31 18:58:00 Mercury 0.0877 AU 34.1 LD 32.7 km/s
2045-11-10 19:47:00 Earth 0.1241 AU 48.3 LD 19.3 km/s
2048-11-07 10:12:00 Earth 0.158 AU 61.5 LD 25.5 km/s
2049-08-20 23:09:00 Venus 0.1498 AU 58.3 LD 26.9 km/s
2062-11-11 09:35:00 Earth 0.1005 AU 39.1 LD 20 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources