Footnote 44
Part II, §18.  The `centre' of the star is the technical name for the extremity of the metal tongue representing it.  The `degree in which the star standeth' is considered to be that degree of the zodiac which souths along with it.  Thus Sirius or Alhabor has its true longitude nearly equal to that of 12° of Cancer, but, as it souths with the 9th degree, it would be said to stand in that degree.  This may serve for an example; but it must be remembered that its longitude was different in the time of Chaucer.