User:MRaimondi

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[edit] ~HOLA~

Stuff I like

This user believes that the Republic of China is a legitimate nation.
This user would like to live in the Vatican City.
hs This user is a high school student.
?-0 This person does not understand where this userbox goes and why.
Virgo This user is a Virgo.

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.


Picture of the day
Korean War train attack

United States Army forces target railway cars south of Wonsan, North Korea, an east coast port city, during the Korean War. Trains in North Korea were targets of attack by U.S. and other U.N. forces, so much so that both military and civilian trains often had to wait out the daylight hours in tunnels.

Photo credit: United States Army
ArchiveMore featured pictures...


Eris
Eris (centre) and Dysnomia (left of centre), taken by the Hubble Space Telescope.
ERIS IS AWESOMER THAN MOST THINGS EXCEPT A FEW .
Hubble Space Telescope.
Discovery
Discovered by M. E. Brown,
C. A. Trujillo,
D. L. Rabinowitz[1]
Discovery date October 21, 2003[1]
Designations
MPC designation 136199 Eris
Alternative names 2003 UB313[2]
Minor planet
category
dwarf planet
TNO (scattered disc object)
Epoch March 6, 2006
(JD 2453800.5)[3]
Aphelion 97.56 AU
14.60×109km
Perihelion 37.77 AU
5.65×109 km
Semi-major axis 67.6681 AU
10.12×109 km
Eccentricity 0.44177
Average orbital speed 3.436 km/s
Mean anomaly 197.63427°
Inclination 44.187°
Longitude of ascending node 35.8696°
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
Equatorial surface gravity ~0.8 m/s2
Sidereal rotation
period
> 8 h?
Albedo 0.86 ± 0.07
Surface temp.
   (approx)
min mean max
30 K 42.5 K 55 K
Apparent magnitude 18.7
Absolute magnitude −1.12 ± 0.01