JSpaced, since it's the end of the game maybe instead of moving the mine to the players you could move the players to the mine? I suggest several mines to make certain, right in the center of the map at 50000, 50000. Sensors will be non-functional anyway, so Science and LRS won't see anything. If every other object in the sector has been destroyed they won't see points of reference on the Helm and Weapons consoles.
At the same time you could change the skybox as a final special effect. Perhaps play the entire game in skybox sb09, then when you transport the players on top of the mine also change the skybox to sb01 and point the players directly at the bright white supernova in that skybox. sb09 and sb01 look similar except for that supernova. Assuming the players have the main screen looking forward that will be the last thing they see as your ending titles pop onto the screen.
"Damn the torpedoes! Four bells, Captain Drayton!"
(Likely actual words of Admiral David Farragut, USN, at the battle of Mobile Bay. Four bells was the signal for the engine room to make full steam ahead).