Starbase 20

Starbase 20 was a Federation starbase that was constructed in the 23rd century.

In 2262, the USS Hood docked at Starbase 20 for shore leave. At this time, Commander Phelana Yudrin was approached by Admiral Ellen Mangione to join her team that was assigned to the base. (TOS novel: My Brother's Keeper: Enterprise).

In 2267, the 12-man scout, USS Harriet Tubman, left the base on an expedition of the Crossroad Nebula. When the Harriet Tubman disppeared, the nebula was declared a hazard. (TOS novel: Crossroad).