Stuff I like
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Hello, My name is Marcus. I am 15 and I go to the Gwinnett School of Mathematics, Science, and Technology. I have used wikipedia extensively. I used to edit alot but... I forgot my old account. Now, i am just getting back into wikipedia. I still have alot to learn and I want to continue improving wikipedia.
Discovery | |||||||||
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Discovered by |
M. E. Brown, C. A. Trujillo, D. L. Rabinowitz [1] | ||||||||
Discovery date | October 21, 2003 [1] | ||||||||
Designations | |||||||||
Designation | 136199 Eris | ||||||||
2003 UB313 [2] | |||||||||
dwarf planet TNO ( scattered disc object) | |||||||||
Orbital characteristics | |||||||||
Epoch
March 6,
2006 ( JD 2453800.5) [3] | |||||||||
Aphelion | 97.56
AU 14.60×109km | ||||||||
Perihelion | 37.77 AU 5.65×109 km | ||||||||
67.6681 AU 10.12×109 km | |||||||||
Eccentricity | 0.44177 | ||||||||
Average
orbital speed | 3.436 km/s | ||||||||
197.63427° | |||||||||
Inclination | 44.187° | ||||||||
35.8696° | |||||||||
Known satellites | 1 | ||||||||
Physical characteristics | |||||||||
Equatorial radius | 1,200 ± 50 km 0.19 Earths | ||||||||
Mass | (1.66 ± 0.02)×1022 kg [4] | ||||||||
Mean
density | 2.3 g/cm3 | ||||||||
~0.8 m/s2 | |||||||||
> 8 h? | |||||||||
Albedo | 0.86 ± 0.07 | ||||||||
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18.7 | |||||||||
−1.12 ± 0.01 | |||||||||