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Trans-Neptunian object

2003 TK58

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(2003 TK58)

Where is it now

Distance from Sun
45.885 AU
True anomaly
183.32°
Distance from Earth
45.588 AU
As of
19 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 2003 TK58 — 45.885 AU from the Sun 2003 TK58
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2003 TK58 is 45.588 AU from Earth today (6.3 light-hours).

In the sky

Right ascension
06h 42m 19s
Declination
+24° 49′ 39″
Constellation
Gemini
Distance from Earth
45.58 AU
Elongation from the Sun
107.54° — 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
43.354 AU
Eccentricity
0.0585
Inclination
3.35°
Orbital period
285.5 years
Perihelion
40.819 AU
Aphelion
45.89 AU
Longitude of ascending node
67.4°
Argument of periapsis
207.73°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 15,490.1 LD
39.8027 AU
Tisserand (Jupiter)
5.873

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
29
Data arc
20.27 years
First observed
3 October 2003
Last observed
9 January 2024
Residual RMS
0.21 ″
Solution · Otto Matic
27 January 2024

Visual & observation

Absolute magnitude (H)
6.88

Discovery & classification

TNO

Sources