Pisces II

Pisces II is a dwarf spheroidal galaxy situated at a distance of about 180 kpc from the Milky Way. 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.

Pisces II is one of the smallest and faintest satellites of the Milky Way — its absolute magnitude of about −5 corresponds to the luminosity of an average globular cluster. The stellar population of Pisces II consists mainly of moderately old stars formed 10 – 12 billion years ago. The metallicity of these old stars is low at −2.3 < [Fe/H] < −1.7, which means that they contain less heavy elements.