👉 "Transdiurnal" is a term used in astronomy and astrophysics to describe the phenomenon of two stars moving towards each other, but at different times (i.e., "transversely") in their orbits. This can occur due to gravitational interactions between these stars or as a result of motion caused by celestial bodies such as asteroids or comets. In the context of astronomy, transdiurnal phenomena are often observed during periods when both stars are moving towards each other but at different times.