The Bre'el IV moon is an asteroid or asteroidal moon, of Bre'el IV located in the Bre'el IV system of the  Bre'el star system. The moon had a minimum orbit, distance of 50,032 kilometers, a maximum distance of 50,059 kilometers, a mean orbital inclination of 0.025 degrees, and an average orbital period of 746 minutes.

In 2366, the moon began to fall out of orbit, threatening the planet. The character Q theorized that this was caused by a large celestial object passing at near right-angles to the plane of the star system, likely a black hole. The USS Enterprise-D] made several attempts to return the moon to its proper orbit, but was unable to do so. Disaster was ultimately averted by Q when he returned the moon to its proper placement.


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