Skip to content
Public Universe
Trans-Neptunian object

2011 UA412

Add to an observing list or journal →

(2011 UA412)

2011 UA412 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 39.43 AU to 53.6 AU from the Sun; one orbit takes 317.2 years. Orbit from the JPL solution of 15 April 2021.

Where is it now

Distance from Sun
39.536 AU
True anomaly
11.33°
Distance from Earth
38.608 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 UA412 — 39.536 AU from the Sun 2011 UA412
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2011 UA412 is 38.608 AU from Earth today (5.4 light-hours).

In the sky

Right ascension
03h 19m 39s
Declination
+19° 26′ 47″
Constellation
Aries
Distance from Earth
38.6 AU
Elongation from the Sun
159.28° — 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
46.515 AU
Eccentricity
0.1522
Inclination
2.95°
Orbital period
317.2 years
Perihelion
39.434 AU
Aphelion
53.596 AU
Longitude of ascending node
252.61°
Argument of periapsis
148.12°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 14,960.5 LD
38.4418 AU
Tisserand (Jupiter)
6.014

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
12
Data arc
419 days
First observed
29 August 2011
Last observed
21 October 2012
Residual RMS
0.25 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
8.7

Discovery & classification

TNO

Sources