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Trans-Neptunian object

2011 UG412

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(2011 UG412)

2011 UG412 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 39.41 AU to 53.96 AU from the Sun; one orbit takes 319 years. Orbit from the JPL solution of 2 November 2023.

Where is it now

Distance from Sun
44.563 AU
True anomaly
81.85°
Distance from Earth
43.636 AU
As of
24 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 — 0.994 AU from the Sun Earth 2011 UG412 — 44.563 AU from the Sun 2011 UG412
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2011 UG412 is 43.636 AU from Earth today (6.0 light-hours).

In the sky

Right ascension
03h 18m 20s
Declination
+20° 46′ 21″
Constellation
Aries
Distance from Earth
43.63 AU
Elongation from the Sun
159.3° — 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
46.681 AU
Eccentricity
0.1559
Inclination
2.49°
Orbital period
319 years
Perihelion
39.405 AU
Aphelion
53.958 AU
Longitude of ascending node
304.12°
Argument of periapsis
26.2°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 14,941.8 LD
38.3937 AU
Tisserand (Jupiter)
6.023

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
38
Data arc
12.13 years
First observed
30 August 2011
Last observed
16 October 2023
Residual RMS
0.21 ″
Solution · Otto Matic
2 November 2023

Visual & observation

Absolute magnitude (H)
7.78

Discovery & classification

TNO

Sources