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Planetary Classes - Class D The USS Reliant and Regula One station in orbit of the class D Regula planetoid.1 |
| Yellow text = Canon source | Green text = Backstage source | White text = DITL speculation |
| # | Series | Season | Source | Comment |
| 1 | Star Trek II : The Wrath of Khan |
| Source: | Star Trek II : The Wrath of Khan |
| Copyright Graham Kennedy | Page views : 8 | Last updated : 1 Jan 1970 |
