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Trans-Neptunian object

2020 XU19

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(2020 XU19)

Where is it now

Distance from Sun
42.779 AU
True anomaly
7.72°
Distance from Earth
42.597 AU
As of
21 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 2020 XU19 — 42.779 AU from the Sun 2020 XU19
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2020 XU19 is 42.597 AU from Earth today (5.9 light-hours).

In the sky

Right ascension
07h 20m 53s
Declination
+23° 41′ 17″
Constellation
Gemini
Distance from Earth
42.6 AU
Elongation from the Sun
99.88° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

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
44.038 AU
Eccentricity
0.0288
Inclination
2.08°
Orbital period
292.3 years
Perihelion
42.768 AU
Aphelion
45.308 AU
Longitude of ascending node
59.83°
Argument of periapsis
39.61°
Epoch · J2000
2459209.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 16,261.8 LD
41.7855 AU
Tisserand (Jupiter)
5.93

Orbit quality

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

Observations used
6
Data arc
33 days
First observed
9 December 2020
Last observed
11 January 2021
Residual RMS
0.21 ″
Solution · Otto Matic
2 July 2021

Visual & observation

Absolute magnitude (H)
8.22

Discovery & classification

TNO

Sources