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Trans-Neptunian object

2021 LD58

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(2021 LD58)

2021 LD58 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 39.33 AU to 55.1 AU from the Sun; one orbit takes 324.4 years.

Where is it now

Distance from Sun
43.589 AU
True anomaly
71.5°
Distance from Earth
44.373 AU
As of
25 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 — 0.994 AU from the Sun Earth 2021 LD58 — 43.589 AU from the Sun 2021 LD58
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2021 LD58 is 44.373 AU from Earth today (6.2 light-hours).

In the sky

Right ascension
16h 29m 53s
Declination
-05° 14′ 22″
Constellation
Ophiuchus
Distance from Earth
44.37 AU
Elongation from the Sun
37.52° — near the Sun — look low at dusk or dawn

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
47.216 AU
Eccentricity
0.167
Inclination
26.25°
Orbital period
324.4 years
Perihelion
39.331 AU
Aphelion
55.101 AU
Longitude of ascending node
104.78°
Argument of periapsis
68.01°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Tisserand (Jupiter)
5.438

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
25
First observed
2020-??-??
Last observed
23 May 2023
Residual RMS
0.41 ″

Visual & observation

Absolute magnitude (H)
9.45

Discovery & classification

TNO

Sources