what does planet Eris have?

Question

everything Please

i got a project to do

i've got the location already

if your going to give a sight. please make shure that it only describes eris's characteristics

Answer 1

Discovery
In July 2005, a team from the California Institute of Technology headed by astronomer Michael Brown announced the discovery of a possible "tenth planet," which was temporarily called 2003 UB313. This most distant object so far found in our solar system is just slightly larger than Pluto and takes 560 years to make a very skewed orbit of the Sun. Most planets circle the Sun very near the same plane as Earth's orbit, but the new object's orbit is off this elliptic plane by about 44 degrees. Astronomers studying this object nicknamed it "Xena" and in 2006 discovered it had a moon, nicknamed "Gabrielle."

Xena's size helped spark the drive for a decisive definition of a planet. Under a proposal presented at the start of the triennial assembly of the International Astronomical Union (IAU) in 2006, the union would have added three more planets to the solar system: Xena, the asteroid Ceres, and Pluto's satellite Charon. This could have opened the door to dozens more planets being added as more large planet-like objects were found beyond Pluto.

Dwarf planet
After much debate, the union decided to classify Xena, Pluto, and Ceres as dwarf planets. Furthermore, Pluto was declared the prototype of a new, as yet unnamed, class of trans-Neptunian objects (TNOs), including Xena. Other recently found TNOs expected to be declared dwarf planets in this class are Varuna (2000), Ixion (2001), Quaoar (2002), and Sedna (2004).

The 2006 IAU General Assembly reduced the solar system from nine to eight planets on the vote of less than 5% of nearly 9,000 members. The new president, Catherine Cesarsky—the first woman to head the union—will have to deal with refining the decisions made at the assembly. A number of astronomers are unhappy with the outcome of the vote and it is expected that the 2009 general assembly in Rio de Janeiro will have more to say on the subject.

New name
On September 13, 2006, the IAU announced the official name of the object formerly known as Xena. The new name, which had been submitted by Michael Brown, is Eris, the Greek goddess of strife or discord. Eris's moon is now Dysnomia, daughter of the goddess Eris, spirit of lawlessness.

The goddess Eris is most famous for having started the Trojan War after being snubbed at a wedding. Not having been invited with the rest of the gods and goddesses, she tossed a golden apple into the crowd of guests inscribed kallisti, or "for the prettiest." This led to an argument among the goddesses Athena, Hera, and Aphrodite over which deserved the apple. Matters escalated, ultimately leading to war. This seems appropriate for the name of a object which sparked intense debate among astronomers and the general public about the definition of a planet, leading to Pluto getting kicked out of the club amidst vocal protests.

Answer 2

The discovery team followed up their initial identification of Eris with spectroscopic observations made at the 8 m Gemini North Telescope in Hawaiʻi on January 25, 2005. Infrared light from the object revealed the presence of methane ice, indicating that the surface of Eris is rather similar to Pluto, which was the only TNO already known to show the presence of methane. Neptune's moon Triton is probably related to Kuiper Belt objects, and also has methane on its surface.

Unlike the somewhat reddish Pluto and Triton, however, Eris appears almost grey. Pluto's reddish color is believed to be due to deposits of tholins on its surface, and where these deposits darken the surface, the lower albedo leads to higher temperatures and the evaporation of methane deposits. In contrast, Eris is far enough away from the Sun that methane can condense onto its surface even where the albedo is low. The condensation of methane uniformly over the surface reduces any albedo contrasts and would cover up any deposits of red tholins.

Methane is very volatile and its presence shows either that Eris has always resided in the distant reaches of the solar system where it is cold enough for methane ice to persist, or that it has an internal source of methane to replenish gas that escapes from its atmosphere. This contrasts with observations of another recently discovered TNO, 2003 EL61, which reveal the presence of water ice but not methane.
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Atmosphere

Even though Eris can be up to three times further from the Sun than Pluto, it approaches close enough that some of the various ices that exist on the surface might become warm enough to sublimate and form a fine atmosphere; however, it is unclear whether this actually happens on Eris.

Due to its orbit, surface temperatures vary between about −232 and −248 degrees Celsius.

Answer 3

Eris?
What is thees Erees you speeeeeek ove?