document-fr | List of 9+9 azimuths synchronized by two solstices into Lumbard rural Calendar. 02c

Within the mathematical build of the Lumbard Calendar are preserved older systems ever in use, synchronized together the main complex, like the 9+9 azimuths scheduled by two distant seasons apart, and exactly maintained between the two solstices, even using positions already measured by strings of 176 or 177+177=353 not 354 days. These distances are recurring at least five times around the year and so will not be fortuitous, but precise commands and measurements.