Espeseth

Asteroid Number 34042
Discovered July 30, 2000 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

Ane Kristine Espeseth (b. 1998) was awarded second place in the 2017 Intel International Science and Engineering Fair for her math team project. She attends the Fagerlia Videregaende Skole, Alesund, More og Romsdal, Norway.

Okay, so Espeon is the Sun evolution of Eevee. You have to expose her to a Sun Stone for her to evolve into Espeon.
You can think of them like an apple.

This is the Sun Set.

You have to have Medusa to get Stones!
Otherwise you might get kidney stones.

You can always buy them from Celadon City Pokemart.
They only have them there!

In Pokemon Go, when you evolve an Eevee (you need stardust and so many candies) they evolve to a random evolution.
However, there used to be a way to name them this or that to manipulate what they evolve to.
Pyro was how you got a Flareon; Sparky was how you got a Jolteon.