Title: Comments on Supernova Remnants and Ancient Novae
Abstract: The low expansion velocity of the Crab Nebula proves conclusively that the supernova of + 1054 was not type I. Only five supernova remnants found in radio surveys are connected with ancient novae, +185, +1006, +1054, +1572, +1604. This corresponds to reasonable expectation. Most of the objects in historical records were comets, the remainder mostly ordinary novae. Most radio remnants are too old, some too heavily obscured to be found in historical records.