The system bore an historical name, "Sualocin", which arose as follows: Niccolò Cacciatore was the assistant to Giuseppe Piazzi, and later his successor as Director of the Palermo Observatory. The name first appeared in Piazzi's Palermo Star Catalogue. When the Catalogue was published in 1814, the unfamiliar names "Sualocin" and "Rotanev" were attached to "Alpha" and "Beta Delphini", respectively. Eventually the Reverend Thomas Webb, a British astronomer, puzzled out the explanation. Cacciatore's name, "Nicholas Hunter" in English translation, would be Latinized to "Nicolaus Venator". Reversing the letters of this construction produces the two star names. They have endured, the result of Cacciatore's little practical joke of naming the two stars after himself.