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Trans-Neptunian object

2011 UE412

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(2011 UE412)

Where is it now

Distance from Sun
48.372 AU
True anomaly
184.56°
Distance from Earth
47.437 AU
As of
20 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 UE412 — 48.372 AU from the Sun 2011 UE412
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2011 UE412 is 47.437 AU from Earth today (6.6 light-hours).

In the sky

Right ascension
03h 04m 13s
Declination
+13° 23′ 18″
Constellation
Aries
Distance from Earth
47.44 AU
Elongation from the Sun
159.83° — well clear of the Sun

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
43.656 AU
Eccentricity
0.1084
Inclination
22.77°
Orbital period
288.5 years
Perihelion
38.922 AU
Aphelion
48.39 AU
Longitude of ascending node
218.11°
Argument of periapsis
5.09°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 14,755.2 LD
37.9144 AU
Tisserand (Jupiter)
5.429

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
28
Data arc
6.31 years
First observed
29 August 2011
Last observed
20 December 2017
Residual RMS
0.22 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
6.7

Discovery & classification

TNO

Sources