Starbase 4

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Starbase 4 was a United Federation of Planets facility active in the 23rd century.

Ca. 2269, Lokai of Cheron stole a shuttlecraft from the starbase. (TOS: "Let That Be Your Last Battlefield")

The starbase was USS Enterprise's destination following its exploration of the Cetus Void. (Orion Press: "The Human Equation")

In the early 2290s, the starbase was the homeport for the Starfleet Fourth Fleet. (Star Trek: Avenger: "The Essential Process")

United Federation of Planets starbases

Starbases: 1 • 2 • 4 • 5 • 6 • 7 • 9 • 10 • 11 • 12 • 14 • 15 • 16 • 17 • 18 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 29 • 31 • 32 • 33 • 36 • 37 • 39-Sierra • 41 • 42 • 43 • 44 • 45 • 47 • 47-Vanguard • 48 • 52 • 53 • 55 • 58 • 63 • 67 • 73 • 74 • 78 • 82 • 83 • 84 • 86 • 87 • 88 • 97 • 103 • 105 • 112 • 118 • 125 • 129 • 134 • 137 • 140 • 152 • 173 • 185 • 188 • 193 • 200 • 201 • 211 • 212 • 214 • 217 • 222 • 227 • 234 • 237 • 247 • 257 • 310 • 311 • 312 • 315 • 332 • 371 • 375 • 376 • 381 • 391 • 397 • 414 • 505 • 512 • 514 • 515 • 544 • 549 • 592 • 600 • 621 • 718 • 742 • 804 • Albyn • Expanse 3 • Expanse 4 • Expanse 7 • Expanse 12 • Guyra IV • Mariner • Pitcairn • Rockford • Sierra 18 • Unity 1 • Unity 2 • 001 Deep space stations: 1 • 2 • 3 • 4 • 5 • 6 • 7 • 9 • 9-II •10 • 12 • 17 • B-5 • K-7 • K-12