Analysis of information sources in references of the Wikipedia article "Crux" in English language version.
We likewise observed ... due south by compass, a constellation of six large bright stars, in the figure of a cross in this form ... we conjectured this to be the southern chariot, but could not expect to observe the principal star, as we had not yet lost sight of the north pole.Cadamosto, A. (c. 1465). Navigatione (1811 Kerr ed.). p. 244.. However, no manuscript of Cadamosto's notebook has survived, only the printed version, and the errors in the diagram may be due to the printer's decision.
Nam tào: "tên sao chòm ở phía nam, cũng là sao cá liệt" ... – " the name of a constellation in the south, also known as the ponyfish star."