1. 
   Dwarf spheroidal galaxy
   Dwarf spheroidal galaxy (dSph) is a term in astronomy applied to low luminosity galaxies that are companions to the Milky Way and to the similar systems that are companions to the Andromeda Galaxy M31. While similar to dwarf elliptical galaxies in appearance and properties such as little to no gas ...
   Found op http://en.wikipedia.org/wiki/Dwarf_spheroidal_galaxy
   
   
2. 
   dwarf spheroidal galaxy
   Leo I: a dwarf spheroidal galaxy that is a remote satellite of the Milky Way. Image: Sloan Digital Sky Survey A low-luminosity (less than absolute visual magnitude -14), low-surface-brightness dwarf elliptical galaxy of near-spherical shape that lacks a nucleus. Although often thought in the past......
   Found op http://www.daviddarling.info/encyclopedia/D/dwarf_spheroidal.html
   
   

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