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Eris (minor-planet designation: 136199 Eris) is the most massive and second-largest known dwarf planet in the Solar System. [22] It is a trans-Neptunian object (TNO) in the scattered disk and has a high-eccentricity orbit. Eris was discovered in January 2005 by a Palomar Observatory–based team led by Mike Brown and verified later that year.
In astronomy, the rotation period or spin period [1] of a celestial object (e.g., star, planet, moon, asteroid) has two definitions. The first one corresponds to the sidereal rotation period (or sidereal day), i.e., the time that the object takes to complete a full rotation around its axis relative to the background stars (inertial space).
These short term fluctuations are very probably generated by the interaction between the solid Earth and the atmosphere. The length of day of other planets also varies, particularly of the planet Venus, which has such a dynamic and strong atmosphere that its length of day fluctuates by up to 20 minutes. [2]
Dwarf planet Eris, similar in size to its better-known cosmic cousin Pluto, has remained an enigma since being discovered in 2005 lurking in the solar system's far reaches. While Pluto was ...
A variety of musical terms are encountered in printed scores, music reviews, and program notes. Most of the terms are Italian, in accordance with the Italian origins of many European musical conventions. Sometimes, the special musical meanings of these phrases differ from the original or current Italian meanings.
The last major TNO, Eris, was at first considered by him, his team, NASA, and many others to be the tenth planet, [4] but the International Astronomical Union assigned it to the new classificatory category of dwarf planet. The possible dwarf planets Trujillo discovered are: Quaoar, co-discovered with Brown
Eris most often refers to: Eris (mythology) or Discordia , the goddess of discord in Greek mythology Eris (dwarf planet) , the second-largest known dwarf planet in the Solar System
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