Astronomy   View all facts   Glossary   Help

physical phenomena > event

event (world point)
subject			fact

event	has duration
	has synonym world point
	has time of occurrence
	has definition A point in four-dimensional spacetime referenced by three spatial coordinates and a complementary temporal ordinate.
	is a kind of physical phenomena

Kinds of event :

• atomic process (47 kinds, 125 facts)
• celestial event (100 kinds, 335 facts) - Event involving one or more celestial objects
• era (36 kinds, 142 facts) - A system of chronological notation reckoned from a given date.