+**A78** marks a unique identifier, a point in a larger system. Its nature varies, from a [Cosmic Body](/wiki/cosmic-body) to a [Technical Specification](/wiki/technical-specification). It signifies a particular instance within its domain, awaiting further definition.
+## See also
+- [Identifier](/wiki/identifier)
+- [Designation](/wiki/designation)
+- [System](/wiki/system)
... 1 more lines