Yes. "Xena" was a provisional name given to Eris.
Xena was the provisional name for Eris. So yes
Before it was officially named, Eris was nicknamed Xena.
UB313 was the unofficial name for Eris the largest known dwarf planet. Xena was used by the discovery team to denote UB313. So yes - Xena is UB313 is Eris
The dwarf planets in our solar system are Cerus and Pluto. Cerus is in between Mars and Jupiter. Pluto is further beyond Neptune. Two others are Xena and Eris.
No. scientists have found dozens of planets about the same size as Eris and Pluto. I think they should just be Dwarf planets.
The objects are Ceres, former asteroid, Pluto, a former planet, and Eris, formerly known as Xena.
Astronomers searching for additional planets beyond Neptune had reserved the name "Xena" for the "warrior princess" of the 1990's TV show. When they discovered a planet larger than Pluto, they assigned that as a provisional name. After the IAU demoted Pluto from "planet" to "dwarf planet", the object tentatively named "Xena" received a permanent name of "Eris". Eris is believed to have one moon.
Ceres and Eris are not planets; they are dwarf planets. Eris is much larger than Ceres.
No, they are two different "dwarf Planets".
You probably mean "Xena". When you say Xena, it sounds like Zena. It is now called "Eris" and is classed as a "dwarf planet".
No. "Xena" now known as Eris orbits much farther out than Ceres. Ceres is the innermost dwarf planet.
The dwarf planet "Eris" was originally nicknamed "Xena". So, Xena was the name of something that was thought to be a new planet, but is now classified as only a dwarf planet, like Pluto.