Between Heaven and a Vast Place

Just a pause for thought as we prepare to start a new chapter of the Fawā’id. Last week we completed the longest chapter, on the twenty-eight lunar stations (manāzil al-qamar), and now we move on to a chapter on the thirty-two stellar rhumbs (akhnān). We shall soon have occasion to go into more detail regarding the rhumbs, but for now it may be useful to consider the connections between the two topics.

The path of the lunar stations goes roughly along the inclined red line. The 32 stellar rhumbs are laid out on the horizontal of the equator, one rhumb each 11 1/4°.

The system of lunar stations is—schematically—an equal division of the sky. The system of stellar rhumbs is an equal division of the entire circle of the horizon, based—schematically—on the rising points of a set of sixteen stars. In theory, their rising points and their diametrical opposites define the compass points. Interestingly, in the Mediterranean, the same division of thirty-two compass points was “based” on the winds, and there were quite complex names of the winds!

So we have one “vertical”, or at least celestial, positioning system, and one horizontal system. Between them, as if availing himself of the possibilities of this conjunction, is the master pilot, a tiny dot with his vessel in the middle of the ocean: so small and insignificant, and yet, thanks to his knowledge (scientia), in command of the situation, following an invisible path through the deep water. Stay tuned for many more details over the coming weeks, digging into the facets and subtleties of the knowledge and practice of the stellar rhumbs. [JA]