Trans-Neptunian object

Xewioso

78799 Xewioso (2002 XW93)

Where is it now

Distance from Sun: 46.344 AU
True anomaly: 165.02°
Distance from Earth: 46.129 AU
As of: 15 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.

Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Xewioso is 46.129 AU from Earth today (6.4 light-hours).

In the sky

Right ascension: 06h 49m 07s
Declination: +34° 29′ 52″
Constellation: Gemini
Distance from Earth: 46.12 AU
Elongation from the Sun: 102.64° — 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.

Paste a location

How do I find my coordinates?

Google Maps on a computer

Right-click the spot where you'll be observing.
The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
Paste them above.

Google Maps on a phone

Press and hold the spot to drop a pin.
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.

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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: 37.676 AU
Eccentricity: 0.2435
Inclination: 14.34°
Orbital period: 231.3 years
Perihelion: 28.501 AU
Aphelion: 46.851 AU
Longitude of ascending node: 46.77°
Argument of periapsis: 248.17°
Epoch · J2000: 2461200.5
Orbit class · TNO: Trans-Neptunian object
Earth MOID · 10,707.2 LD: 27.5128 AU
Tisserand (Jupiter): 5.195

Orbit quality

Orbit very well determined (uncertainty code 2).

Observations used: 109
Data arc: 36.06 years
First observed: 17 December 1989
Last observed: 8 January 2026
Residual RMS: 0.49 ″
Solution · Otto Matic: 13 March 2026

Visual & observation

Absolute magnitude (H): 4.84

Discovery & classification

Discovered by: Palomar
Discovery date: 10 December 2002
Discovery site: Palomar

Xewioso was a thunder god in the mythologies of the Ewe and Fon people of Western Africa.

Also known as 78799 · 2002 XW93

Named TNO

Close approaches 1 on record

When (UTC)	Body	Distance	Lunar distances	Relative speed
2130-03-05 17:11:00	Neptn	1.9903 AU	774.6 LD	1.8 km/s

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

Sources

visual properties: JPL SBDB (lookup)
orbital elements: JPL SBDB