The Explored Galaxy: The location of Manark IV
Manark IV was the fourth planet in the distant Manark system. The location of the planet was depicted on a Federation star chart in 2293. (Star Trek VI: The Undiscovered Country)
It was the homeworld of the sand bat. (TOS: "The Empath")
Manark IV appeared in the starchart Data and Picard were studying in Stellar Cartography in 2371. (Star Trek Generations)
The Explored Galaxy: This chart was also seen in several Star Trek: The Next Generation and Star Trek: Deep Space Nine episodes set in the 24th century, from the year 2364 to 2370. These were: TNG: "Conspiracy", "The Measure Of A Man", "The Emissary", "The Mind's Eye", "The Game" and DS9: "In the Hands of the Prophets", "Cardassians".