|Surface:||Rocky, Sparsely vegetated, and water|
Gurelse is a moon in orbit around the planet Horold IV. Colonized by the Vulcans in the early 23rd century, it is where Lieutenant M'Pel was born. In 2322, the planet was bombarded with solar radiation when the protective magnetic field of Horold IV failed. By 2329, the colony was evacuated due to the instability of Horold IV's magnetic field.