'etnap Nebula
The etnap Nebula was a T-Tauri class nebula in the Beta Quadrant. The Epsilon Hydrae system was located in this nebula.

In 2259, the location of this nebula was labeled on a stellar cartography chart that was seen on the 's ready room viewscreen. This nebula's symbol was a red Klingon Empire logo, indicating its affiliation with the empire. () 

In 2367, on stardate 44322.82, Captain Rudolph Ransom shadowed a Klingon Bird-of-Prey near the planet Epsilon IV, in the Epsilon Hydrae system. After discovery, Ransom managed to elude the Klingons in the nebula for three days until stardate 44325.18 when they gave up the chase and he disengaged. ()

In 2399, the location of the 'etnap Nebula was labeled on a Federation star chart in Fleet Admiral Kirsten Clancy's office at Starfleet Headquarters. The nebula was in or near to Klingon space. ()

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Nebulae