DESCRIPTION
DS-K7 system is a colony on the 4th planet in the DS-K7 system.
It's located in Beta quadrant near the Klingon Empire.
The DS-K7 homeworld is a temperate Minshara-Class planet orbiting the single star system.
DS-K7 star aka HIP 15199 is in the Eridanus constellation, located about 156.6 light years from Sol. 
This star is a yellow dwarf (G2V) with 1.2 radius and 1.4 luminosity.
DS-K7 system is near Delta-Outpost-10 (10.5 LY), Neural (24.1 LY), and Sherman (38.0 LY).

History
Deep Space Station K-7, also called Deep Space K-7, Space Station K-7 or simply K-7, 
was a Federation deep space station in the mid-23rd century. 
The station was constructed by Starfleet in 2268 and administered by a civilian staff.
TOS: "The Trouble with Tribbles"

Starbase DS-K7 turns around DS-K7_IV.
The USS Enterprise (NCC-1701) turns around DS-K7.
Shuttle Galileo turns around DS-K7_V.
IKS Gorth (v2) turns around DS-K7.
Around DS-K7  there are :

A journey from Sun to DS-K7 gives with okuda table :
    At warp 5.0 : 267.3 days (Enterprise)
    at warp 7.0 :  87.2 days (Tos)
    at warp 9.0 :  37.7 days (Tng)
    at warp 9.95:  10.0 days (USS DELESTREZ-A v5)
    at warp 9.9+:   8.0 days (Voyager)

V1
Starbase K7 v2,
USS Enterprise v2,
Ktinga tos v2,
Ds-K7 fleet :
    USS Bismarck,
    USS Darius,
    USS Entente,
    USS Kali,
    USS Kongo,
    USS Konkordium,
    USS Mandela,
    USS Mastodon,
    USS Ramius,
    USS Saskatchewan,
    USS Scharnhorst,
    USS Tokyo,
    USS Yichun,
    USS Zhukov.

All objects are with diffuse, emissive, normal & specular textures !