Ever wonder who had all those weird sisters? (Rainbow Butt Pixony, Spectra, ect? (can't spoil the plot! but that's not all of em') Sphereatrix is a Heavenly-Beast, a cross between a rather amorous serpent-dragon and a celestial horse. Both were, in fact, the steeds of a god and goddess who also fell in loooooove. Since her children were born mortal, she sent them to a planet to enjoy their lives until they joined her in the stars after enlightenment and realization of the meaning of life and the creation of the universe. It is unknown how many children she has had, or with whom, her parents are still in service of the aforementioned god and goddess, and thusly have not been seen since after her own mortal life as a normal horse ended and she joined them as an earth-spirit. She has since ultilized a previously created solar system not far from mother-terra and set up a planet for the children of sprits such as herself.

The planet was named after her, as she made it livable before depositing her first offspring, RBP, the rather silly little rainbow-haired filly, and invited other spirits to do the same to create an ideal enviroment for their children to live in.

Known inhabitants:
RBP
Spectra
Green-Band Griffon
BerryBand

Vistors so far:
Foxby

Flora and fauna (non senient):
mostly unknown, there has been little exploration by the inhabitants but the planet does have an uncanny simblance to earth, with mountains and oceans, forest and plains, deaserts and lush rainforests.
as for animals, there are all manner of insects and mammals, reptiles and amphibians, fish and arachnids, all mostly similar to earth species
as far as has been discovered or known.