Clesthyra

First Appearance and Context

Clesthyra is referenced during an Apert visit to the rooftop works above the Præsidium, where a small fixed fisheye lens—informally called “Clesthyra’s Eye”—is pointed straight up from the Starhenge. The name is explained as coming from a mythic creature that could look in all directions at once.

Roles/Actions and Affiliations

• Mythic namesake for an instrument: “Clesthyra’s Eye” is a fixed all‑sky lens used to capture the entire sky in one view so observers can record and measure the streaks of fast‑moving objects (such as meteor tracks). Instruments of this type were installed on starhenges widely during a period of heightened interest in near‑space objects.

Relationships

• Eponym of “Clesthyra’s Eye,” a rooftop device associated with the Starhenge and the upper works of the Mynster.

Descriptions/Characteristics

• Described as a monster from ancient mythology that could see in all directions at once.

Current Status/Location

• As a mythological figure, Clesthyra has no physical presence in the current narrative. The name persists in active use as the eponym for an all‑sky instrument mounted on the Starhenge atop the Præsidium.