If the target object type referes to a real object, this attribute allows one to indicate which object. This is performed by a URI that should identify the object in the Ontology of SimbadIdentifiedNames
In some cases a real identified object in the universe is being modelled. If that is the case, this attribute allows that object to be identified. We assume a list of such objects may be provided through some means, embodied by the IdentifiedObject data type.
Ex: Galaxy, Antennae, M31.
