136199 Eris
Manipud iti Wikipedia
Ti Eris (tengnga) ken ti Dysnomia (kanawan iti tengnga). Keck Observatory. |
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Discovery A | |
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Discoverer | M. E. Brown, C. A. Trujillo, D. L. Rabinowitz |
Discovery date | October 21, 2003 |
Alternate designations B |
2003 UB313 |
Category | Trans-Neptunian object (Scattered disc object) |
Orbital elements C | |
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Eccentricity (e) | 0.44177 |
Semi-major axis (a) | 67.6681 AU (10.12 Tm) |
Perihelion (q) | 37.77 AU (5.65 Tm) |
Aphelion (Q) | 97.56 AU (14.60 Tm) |
Orbital period (P) | 203,500 d (557 a) |
Mean orbital speed | 3.436 km/s |
Inclination (i) | 44.187° |
Longitude of the ascending node (Ω) |
35.8696° |
Argument of perihelion (ω) |
151.4305° |
Mean anomaly (M) | 197.63427° |
Physical characteristics D | |
Dimensions | 2400 km ± 100 km |
Mass | ?×10? kg |
Density | ? g/cm³ |
Surface gravity | ? m/s² |
Escape velocity | ? km/s |
Rotation period | > 8 h? |
Spectral class | ? |
Absolute magnitude | −1.12 ± 0.01 |
Albedo (geometric) | 0.86 ± 0.07 |
Mean surface temperature |
~30 K |
Ti Eris ([ˈirɪs] or [ˈɛrɪs]), nga ofisial a maawagan kas 136199 Eris, ti am-ammo a kadakkelan nga ansisit a planeta iti Sistema a Solar. Sigud a naawagan iti 2003 UB313, damo a nabirngasan iti "Xena."
Ti Sistema a Solar |
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Bituen: Ti Init |
Dagiti Planeta: Mercurio | Venus | Daga | Mars | Jupiter | Saturno | Uranus | Neptuno |
Dagiti ansisit a planeta: Ceres - Pluto - Eris |
Babassit a bagbagi: Dagiti asteroid - Dagiti centaurs - TNOs - Dagiti kometa - Dagiti layap |
Dagiti satellite: Terran - Martian - Jovian - Saturnian - Uranian - Neptunian |
Populations: Barikes nga Asteroid - Barikes a Kuiper - Naiwaris a disc - Ulep nga Oort |
Kitaen met dagiti astronomical a bambanag ken ti listaan ti bambanag ti sistema a solar a naurnos babaen ti radius wenno ti mass. |