Dayos
Dayos was a planetary system in the Beta Quadrant. A planet in this system, Dayos IV, was home to one of the the Albino's ex-wives in the 2360s.

In 2257, the system's location was labeled on the star chart showing the trajectory of Lieutenant Spock's shuttle. ()

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

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Star systems