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Centaur

2025 FM43

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(2025 FM43)

Where is it now

Distance from Sun
3.557 AU
True anomaly
40.05°
Distance from Earth
3.322 AU
As of
11 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.

Orbit of Mercury Orbit of Venus Orbit of Mars Sun Earth — 0.998 AU from the Sun Earth 2025 FM43 — 3.557 AU from the Sun 2025 FM43
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 FM43 is 3.322 AU from Earth today (27.6 light-minutes).

In the sky

Right ascension
19h 46m 55s
Declination
-26° 12′ 33″
Constellation
Sagittarius
Distance from Earth
3.33 AU
Elongation from the Sun
94.91° — 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
6.036 AU
Eccentricity
0.4539
Inclination
4.85°
Orbital period
14.83 years
Perihelion
3.296 AU
Aphelion
8.777 AU
Longitude of ascending node
57.03°
Argument of periapsis
213.05°
Epoch · J2000
2461200.5
Orbit class · CEN
Centaur
Earth MOID · 887.9 LD
2.2816 AU
Tisserand (Jupiter)
2.775

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
11
Data arc
60 days
First observed
28 March 2025
Last observed
27 May 2025
Residual RMS
0.63 ″
Solution · Otto Matic
3 July 2025

Visual & observation

Absolute magnitude (H)
15.95

Discovery & classification

Centaur

Close approaches 5 on record

When (UTC) Body Distance Lunar distances Relative speed
2031-08-22 23:24:00 Satrn 1.1901 AU 463.2 LD 4.1 km/s
2058-02-12 20:01:00 Juptr 0.6781 AU 263.9 LD 4.6 km/s
2091-07-21 21:21:00 Satrn 1.2344 AU 480.4 LD 2.7 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources