Pisces II

Pisces II (Psc II)[A] is a dwarf spheroidal galaxy situated in the Pisces constellation and discovered in 2010 in the data obtained by the Sloan Digital Sky Survey.

It is classified as a dwarf spheroidal galaxy (dSph) meaning that it has an elongated shape with the half-light radius of about 60 pc and ratio of the axis of about 5:3.

The stellar population of Pisces II consists mainly of moderately old stars formed 10–12 billion years ago.

[1] In 2016, follow-up work on Pegasus III highlighted that both it and Pisces II lie relatively close to each other (within approximately 43 kpc) and share similar radial velocities in the Galactic standard of rest frame (note: this is not the same as the LSR).

This suggests that these two satellite galaxies may actually be associated with one another, and there is also a possibility that there was an even closer passage about 1 billion years ago.