We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
Lines that are not evenly spaced.
Also known as: Hour line dial, Sundial marking
The engraved lines of a sundial marking the hours, spaced by geometry rather than evenly.
Mark the hours on a sundial face by the position of the gnomon's shadow.
Contexts: History, Navigation
Unevenly spaced because the shadow's angular speed varies through the day, and the spacing depends on the dial's latitude — so a sundial is correct only at the latitude it was cut for and cannot simply be moved.
Contexts: History, Navigation
Shows apparent solar time, which differs from clock time by up to about a quarter of an hour through the year, so a correctly cut dial disagrees with a correct clock on most days.
Contexts: History, Navigation
Radiating lines engraved on the dial face, unevenly spaced, converging on the foot of the gnomon and numbered outward.