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Trans-Neptunian object

2003 UY283

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(2003 UY283)

Where is it now

Distance from Sun
36.048 AU
True anomaly
155.59°
Distance from Earth
36.611 AU
As of
15 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 2003 UY283 — 36.048 AU from the Sun 2003 UY283
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2003 UY283 is 36.611 AU from Earth today (5.1 light-hours).

In the sky

Right ascension
10h 34m 03s
Declination
+28° 07′ 12″
Constellation
Leo Minor
Distance from Earth
36.61 AU
Elongation from the Sun
55.28° — near the Sun — look low at dusk or dawn

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
33.34 AU
Eccentricity
0.8937
Inclination
18.86°
Orbital period
192.5 years
Perihelion
3.544 AU
Aphelion
63.135 AU
Longitude of ascending node
39.92°
Argument of periapsis
311.71°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 1,003.4 LD
2.5782 AU
Tisserand (Jupiter)
2.306

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
43
Data arc
32 days
First observed
18 October 2003
Last observed
19 November 2003
Residual RMS
0.34 ″
Solution · Otto Matic
14 April 2021

Visual & observation

Absolute magnitude (H)
15.16

Discovery & classification

TNO

Sources