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Trans-Neptunian object

2025 LC3

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(2025 LC3)

Where is it now

Distance from Sun
43.273 AU
True anomaly
120.84°
Distance from Earth
42.922 AU
As of
18 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 2025 LC3 — 43.273 AU from the Sun 2025 LC3
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 LC3 is 42.922 AU from Earth today (5.9 light-hours).

In the sky

Right ascension
21h 14m 10s
Declination
-18° 21′ 01″
Constellation
Capricornus
Distance from Earth
42.93 AU
Elongation from the Sun
109.59° — well clear of the Sun

Favours the southern hemisphere; low or below the horizon from far north.

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
42.434 AU
Eccentricity
0.0411
Inclination
9.17°
Orbital period
276.4 years
Perihelion
40.692 AU
Aphelion
44.176 AU
Longitude of ascending node
122.79°
Argument of periapsis
73.17°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 15,451.5 LD
39.7036 AU
Tisserand (Jupiter)
5.756

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
12
Data arc
103 days
First observed
5 June 2025
Last observed
16 September 2025
Residual RMS
0.44 ″
Solution · Otto Matic
5 June 2026

Visual & observation

Absolute magnitude (H)
6.6

Discovery & classification

TNO

Sources