File:Eris_and_moon_Dysnomia_JWST_NIRCam.jpg · Wikimedia Commons · See Wikimedia Commons
(136199) Eris
Sign in to saveAlso known as Sol k, Eris (dwarf planet), Xena, 136199 Eris
Zwergplanet unseres Sonnensystems
OverviewAI-generated
Eris is a trans-Neptunian object and plutoid in the scattered disc. It orbits the Sun with a period of 557.55 years, an eccentricity of 0.43883, and an inclination of 44.1444 degrees. Its orbit has a periapsis of 38.013 and an apparent magnitude of 18.7. The object has a radius of 1163 and an albedo of 0.96.
Eris was discovered on 2003-10-21 at Palomar Observatory by Michael E. Brown, Chadwick Trujillo, and David L. Rabinowitz. It was provisionally designated 2003 UB313. The body has a mass of 16.6 and is accompanied by its child astronomical body, Dysnomia.
Synthesized by Vinony from 26 facts across 3 sources: Wikidata, NASA, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Picture of the Day · NASA

Pathfinder on Mars
2026-07-04
On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.
via NASA APOD
Wikidata facts
- Instance of
- astronomical object
- Part of
- scattered disc
- Named after
- Eris
- Official name
- 136199 Eris
- Area
- 17000000
- Location
- Solar System
- Parent body
- Sun
- Child body
- Dysnomia
- Minor-planet group
- plutoid
- Diameter
- 2326
- Radius
- 1163
- Mass
- 16.6
- Orbital period
- 557.55
- Image
- Eris and dysnomia.jpg
Show 28 more facts
- discoverer or inventor
- David L. Rabinowitz
- Commons category
- 136199 Eris
- site of astronomical discovery
- Palomar Observatory
- time of discovery or invention
- 2003-10-21
- provisional designation
- 2003 UB313
- topic's main category
- Category:Eris (dwarf planet)
- orbital eccentricity
- 0.4346554671925892
- orbital inclination
- 44.1444
- longitude of ascending node
- 35.9045
- argument of periapsis
- 151.6871
- albedo
- 0.96
- apparent magnitude
- 18.7
- mean anomaly
- 205.384
- periapsis
- 38.013
- semi-major axis of an orbit
- 67.740
- apoapsis
- 97.468
- density
- 2.52
- periapsis date (DEPRECATED)
- 2258-10-14
- absolute magnitude
- -1.1
- rotation period
- 25.9
- angular diameter
- 34.3
- temperature
- 55
- name
- Xena
- Unicode character
- ⯰
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- IPA transcription
- ˈeːʁɪs
- surface gravity
- 0.82
- epoch
- May 5, 2025
Sources (10)
via Wikidata · CC0
Article · Deutsch
(136199) Eris (frühere Bezeichnung 2003 UB313) ist der massereichste und nach Pluto zweitgrößte bekannte Zwergplanet des Sonnensystems. Eris zählt zu den Plutoiden, einer Unterklasse von Zwergplaneten, die jenseits der Neptunbahn die Sonne umrunden. Eris ist (Stand 2019) das größte erfasste Objekt im Sonnensystem, welches noch nie von einer Raumsonde untersucht wurde; bekannt ist ein Mond namens Dysnomia. Der Zwergplanet ist nach Eris benannt, der griechischen Göttin der Zwietracht und des Streits. Nach der Bekanntgabe ihrer Entdeckung am 29. Juli 2005 bezeichneten die NASA und viele Medien dieses Transneptunische Objekt mit einem ähnlichen Durchmesser wie Pluto zunächst als „zehnten Planeten“. Die Internationale Astronomische Union (IAU) verabschiedete allerdings am 24. August 2006 eine neue Planetendefinition, nach der Eris, genauso wie Pluto, als Zwergplanet klassifiziert wurde. Eris bewegt sich auf einer stark exzentrischen und gegenüber der Ekliptik geneigten Bahn um die Sonne, von der sie am 20. Februar 2020 genau 96 AE (14,4 Milliarden Kilometer) entfernt war. Man rechnet sie wegen ihrer großen Exzentrizität bahndynamisch zu den sogenannten „gestreuten“ Kuipergürtelobjekten (SDO), einer Untergruppe von transneptunischen Asteroiden.
Abstract from DBpedia / Wikipedia · CC BY-SA
Gallery (15)
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