136199 Eris
From Wikipedia
| Ti Eris (tengnga) ken ti Dysnomia (kanawan iti tengnga). Keck Observatory. |
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| Discovery A | |
|---|---|
| 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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|
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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 |
|---|
| 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. |

