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Trans-Neptunian object

2025 MF351

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(2025 MF351)

Where is it now

Distance from Sun
43.345 AU
True anomaly
265.02°
Distance from Earth
44.121 AU
As of
22 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 — 0.995 AU from the Sun Earth 2025 MF351 — 43.345 AU from the Sun 2025 MF351
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 MF351 is 44.121 AU from Earth today (6.1 light-hours).

In the sky

Right ascension
16h 15m 22s
Declination
-28° 46′ 15″
Constellation
Scorpius
Distance from Earth
44.12 AU
Elongation from the Sun
38.02° — near the Sun — look low at dusk or dawn

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
45.375 AU
Eccentricity
0.2571
Inclination
11.4°
Orbital period
305.7 years
Perihelion
33.711 AU
Aphelion
57.039 AU
Longitude of ascending node
288.79°
Argument of periapsis
53.5°
Epoch · J2000
2460864.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 12,732.1 LD
32.7158 AU
Tisserand (Jupiter)
5.71

Orbit quality

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

Observations used
8
Data arc
19 days
First observed
25 June 2025
Last observed
14 July 2025
Residual RMS
0.28 ″
Solution · Otto Matic
20 October 2026

Visual & observation

Absolute magnitude (H)
5.96

Discovery & classification

TNO

Sources