Related to or used in taking photographs of stars and celestial objects in space.
From astro- (Greek 'astron' meaning star) combined with photographic (from photo- meaning light, and -graphic meaning writing/recording). The term emerged in the late 19th century as astronomy and photography technologies converged.
The first astrophotographic plates revealed that the night sky contained far more stars than the human eye could ever see—entire galaxies invisible until light could be captured on film. This technology literally expanded our universe!
Complete word intelligence in one call. Free tier — 50 lookups/day.