Credit: Yao-Yuan Mao (Utah), adapted from "The SAGA Survey. III. A Census of 101 Satellite Systems around Milky Way-mass Galaxies"
A illustration of the SAGA Survey in relation to other surveys of Milky Way-like satellite systems. Each gray circle represents a satellite system, and the colored points represent the satellites that are observable with current observational capacity. As the cosmological distance increases from left to right, more systems but fewer satellites per system can be observed.