This guide will let you know where to find Emeril in No Man’s Sky.
Emeril spawns on planets in green star systems to which you will need to warp.
To warp to the green systems, you will need to have the Emeril hyperdrive upgrade for your hyperdrive, so make sure you have it before you start.
Green star systems typically show as green dots on the galaxy map, and they look like this.
Once you’ve reached a planet with Emeril on it, you have to use your analysis visor to look for Emeril deposits on the planet.