solargraph means A photograph of the paths of the Sun across the sky created with pinhole photography. Lexicurio rates it Sui generis — a strength score of 91 out of 100.
Why “solargraph” is a great word
A photograph of the Sun's daily paths across the sky, recorded by a fixed pinhole camera over months or even years. From Latin sōlāris ("of the sun") and Greek -graphos ("writing" or "recording"). Unlike a "heliograph," which signals with mirrors or measures radiation, or a general "photograph" captured in an instant, a solargraph is an artifact of accumulated time. It is the patient burn of light onto photographic paper: a nest of pale, arcing lines climbing and falling with the seasons, the stark, parched streak of a season's vigil, and the ghostly gaps where clouds scoured the sky blank—a fragile calendar of celestial mechanics, written in fire and absence.
Etymology
From solar + -graph.
noun
- A photograph of the paths of the Sun across the sky created with pinhole photography.