The Bajoran sun is the sole star that makes up the Bajoran system.
In 2373, a Founder posing as Deep Space 9's Dr. Bashir attempted to destroy the sun using a bomb composed of trilithium, tekasite and protomatter. (DS9: "By Inferno's Light")
During Operation Return the Klingons entered the battle with the Bajoran sun in their rear.
- According to the Star Trek: Deep Space Nine Technical Manual the proper name of the star is "Bajor-B'hava'el." This information is repeated in several other sources.