The Captain's log on the USS Constellation (NCC-1017) was the method used by the commanding officer to officially record the ship's missions.
Commodore Matt Decker made such an entry while investigating an extragalactice doomsday machine in 2267. (TOS: "The Doomsday Machine")
Entries
- "Captain's Log, Stardate 4202.1. Exceptionally heavy subspace interference still prevents our contacting Starfleet to inform them of the destroyed solar systems we have encountered. We are now entering system L-374. Science Officer Masada reports the fourth planet is breaking up.
We are going to investigate."