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Trans-Neptunian object

2006 UR321

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(2006 UR321)

Where is it now

Distance from Sun
32.432 AU
True anomaly
44.95°
Distance from Earth
32.348 AU
As of
16 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 — 0.997 AU from the Sun Earth 2006 UR321 — 32.432 AU from the Sun 2006 UR321
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2006 UR321 is 32.348 AU from Earth today (4.5 light-hours).

In the sky

Right ascension
07h 23m 07s
Declination
+20° 30′ 45″
Constellation
Gemini
Distance from Earth
32.34 AU
Elongation from the Sun
94.41° — 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
39.315 AU
Eccentricity
0.2183
Inclination
2.85°
Orbital period
246.5 years
Perihelion
30.734 AU
Aphelion
47.895 AU
Longitude of ascending node
140.14°
Argument of periapsis
282.54°
Epoch · J2000
2454028.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 11,577.1 LD
29.7479 AU
Tisserand (Jupiter)
5.491

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 9).

Observations used
3
Data arc
24 hours
First observed
19 October 2006
Last observed
20 October 2006
Residual RMS
0.07 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
8.51

Discovery & classification

TNO

Sources