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Trans-Neptunian object

2020 UD74

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(2020 UD74)

Where is it now

Distance from Sun
39.648 AU
True anomaly
180.89°
Distance from Earth
38.729 AU
As of
16 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 — 0.997 AU from the Sun Earth 2020 UD74 — 39.648 AU from the Sun 2020 UD74
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2020 UD74 is 38.729 AU from Earth today (5.4 light-hours).

In the sky

Right ascension
00h 09m 17s
Declination
-03° 44′ 48″
Constellation
Pisces
Distance from Earth
38.73 AU
Elongation from the Sun
156.46° — well clear of the Sun

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
39.291 AU
Eccentricity
0.0091
Inclination
11.14°
Orbital period
246.3 years
Perihelion
38.934 AU
Aphelion
39.648 AU
Longitude of ascending node
158.97°
Argument of periapsis
21.73°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 14,765.4 LD
37.9404 AU
Tisserand (Jupiter)
5.525

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
10
Data arc
731 days
First observed
28 September 2019
Last observed
28 September 2021
Residual RMS
0.19 ″
Solution · Otto Matic
30 November 2023

Visual & observation

Absolute magnitude (H)
8.9

Discovery & classification

TNO

Sources