List of unnamed Alpha and Beta Quadrant planetoids.
Azati Prime planetoid []
This planetoid was located in the Azati Prime system near Azati Prime, further out from the star compared with the planet and the detection grid protecting it. It also had a single moon.
Enterprise attempted to hide behind the planetoid to avoid detection by Xindi forces in the system in February 2154, but was unaware of the fact that there was a listening post on the moon below, staffed by three Xindi. Enterprise destroyed the outpost before it could send a message to the planet, but the lack of a report from the outpost alerted Commander Dolim of Enterprise's presence anyway. (ENT: "Azati Prime")
The way the moon was brought up without explanation very abruptly and its surface had a similar texture as the planetoid Enterprise had been shown orbiting, a Homeric nod might actually have occurred where the writers mistakenly referred to the same body as both a planetoid and later a moon.
Diplomacy scenario 12-alpha planetoid[]
The diplomacy scenario 12-alpha revolved around the mining rights for a planetoid in Nausicaan space. (VOY: "Q2")
This planetoid was only mentioned in dialogue.
Planetoid used for torpedo dissection[]
In an alternate 2259, this planetoid, with a breathable atmosphere, was used by Carol Marcus and Leonard McCoy to open up an advanced long-range torpedo without endangering the USS Enterprise. (Star Trek Into Darkness)
Terikof Belt planetoids []
Located in the Badlands, the Terikof belt contained several class M planetoids. In 2371, they were theorized by Tom Paris to be a possible destination of the missing ship Val Jean. (VOY: "Caretaker")
These planetoids were only mentioned in dialogue.