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Trans-Neptunian object

2011 UX410

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(2011 UX410)

Where is it now

Distance from Sun
31.115 AU
True anomaly
294.06°
Distance from Earth
30.315 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 2011 UX410 — 31.115 AU from the Sun 2011 UX410
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2011 UX410 is 30.315 AU from Earth today (4.2 light-hours).

In the sky

Right ascension
04h 01m 00s
Declination
+15° 21′ 51″
Constellation
Taurus
Distance from Earth
30.31 AU
Elongation from the Sun
142.9° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

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
39.706 AU
Eccentricity
0.3321
Inclination
17.46°
Orbital period
250.2 years
Perihelion
26.52 AU
Aphelion
52.891 AU
Longitude of ascending node
223.95°
Argument of periapsis
262.92°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 9,955.7 LD
25.5818 AU
Tisserand (Jupiter)
5.102

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
34
Data arc
9.14 years
First observed
30 August 2011
Last observed
20 October 2020
Residual RMS
0.21 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
8.36

Discovery & classification

TNO

Sources