What historical designation identifies Alpha Piscium as a double star system?

Answer

Struve 202

Alpha Piscium is historically cataloged as Struve 202, a designation originating from the famous W. Struve double star catalog. This classification highlights that the object is not a single point of light, but a gravitationally bound pair of stars that appear as one to the naked eye.

What historical designation identifies Alpha Piscium as a double star system?
astronomystarconstellationPiscesalpha star