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Trans-Neptunian object

2003 FJ127

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(2003 FJ127)

Where is it now

Distance from Sun
37.402 AU
True anomaly
311.13°
Distance from Earth
38.361 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 FJ127 — 37.402 AU from the Sun 2003 FJ127
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2003 FJ127 is 38.361 AU from Earth today (5.3 light-hours).

In the sky

Right ascension
13h 37m 36s
Declination
+05° 10′ 33″
Constellation
Virgo
Distance from Earth
38.36 AU
Elongation from the Sun
15.62° — too close to the Sun to observe

Visible from both hemispheres.

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
43.276 AU
Eccentricity
0.1811
Inclination
22.88°
Orbital period
284.7 years
Perihelion
35.44 AU
Aphelion
51.111 AU
Longitude of ascending node
162.22°
Argument of periapsis
89.41°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 13,429.5 LD
34.5078 AU
Tisserand (Jupiter)
5.346

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
24
Data arc
21.1 years
First observed
30 March 2003
Last observed
4 May 2024
Residual RMS
0.29 ″
Solution · Otto Matic
11 March 2026

Visual & observation

Absolute magnitude (H)
7.26

Discovery & classification

Also known as 2023 FM57

TNO

Sources