Skaph

Skaph is a fictional term used in speculative fiction and worldbuilding to denote a compact navigational device and cultural artifact associated with seafaring peoples. In most settings, skaphs are crafted from brass or bronze and sized to fit in a palm. They combine a miniature sundial, a star chart disc, and a lens; some versions incorporate a glass plate etched with a navigational grid. The function is to assist celestial navigation by aligning the instrument with visible stars to estimate latitude and solar time, functioning similarly to a simplified astrolabe or octant in the hands of a practiced navigator.

Origin stories within fictional works trace the name to the Old Skaphian language of the archipelago where the device first appeared; “skaph” is said to mean “to point the way” or “guide.” The term has been used both for the instrument and for navigational guilds that preserve and teach its use.

Over time, skaphs appear in different forms. The classic skaph is ceremonial, elaborately engraved, intended for display and ritual. The field skaph is ruggedized for shipboard use, with waterproof seals and knurled surfaces. The scholar’s skaph integrates modern projection technology for teaching and simulation. In many stories, skaphs are passed down as heirlooms, with legends about their creators and the routes they reveal.

In narrative contexts, skaphs symbolize seamanship, curiosity, and the human drive to chart the unknown. They function as plot devices that enable travel, reveal hidden maps, or unlock old ports and secret routes.

See also: Navigational instruments, Astrolabe, Sextant, Portolan chart.