ακανονιστη περιοδος?

Question

&gamma;&iota;&alpha;&tau;&rho;&epsilon;  &kappa;&alpha;&lambda;&eta;&sigma;&pi;&epsilon;&rho;&alpha;.&epsilon;&iota;&mu;&alpha;&iota; 29&chi;&rho;.&epsilon;&nu;&omega; &omicron; &kappa;&upsilon;&kappa;&lambda;&omicron;&sigmaf; &mu;&omicron;&upsilon; &gamma;&epsilon;&nu;&iota;&kappa;&alpha; &eta;&tau;&alpha;&nu; &sigma;&tau;&alpha;&theta;&epsilon;&rho;&omicron;&sigmaf; &sigma;&tau;&iota;&sigmaf; 25-26 &mu;&epsilon;&rho;&epsilon;&sigmaf; &epsilon;&chi;&omega; &delta;&upsilon;&omicron; &mu;&eta;&nu;&epsilon;&sigmaf; &pi;&omicron;&upsilon; &mu;&omicron;&upsilon; &eta;&rho;&theta;&epsilon; &pi;&epsilon;&rho;&iota;&omicron;&delta;&omicron;&sigmaf; &sigma;&tau;&iota;&sigmaf; 21 &mu;&epsilon;&rho;&epsilon;&sigmaf;.&alpha;&nu;&eta;&sigma;&upsilon;&chi;&omega; &kappa;&alpha;&iota; &eta;&theta;&epsilon;&lambda;&alpha; &nu;&alpha; &sigma;&alpha;&sigmaf; &rho;&omega;&tau;&eta;&sigma;&omega; &alpha;&nu; &epsilon;&iota;&nu;&alpha;&iota; &phi;&upsilon;&sigma;&iota;&omicron;&lambda;&omicron;&gamma;&iota;&kappa;&omicron;.&eta; &pi;&omicron;&sigma;&omicron;&tau;&eta;&tau;&alpha; &tau;&omicron;&upsilon; &alpha;&iota;&mu;&alpha;&tau;&omicron;&sigmaf; &kappa;&alpha;&iota; &omicron;&iota; &mu;&epsilon;&rho;&epsilon;&sigmaf; &pi;&omicron;&upsilon; &kappa;&rho;&alpha;&tau;&alpha;&epsilon;&iota; &kappa;&alpha;&nu;&omicron;&nu;&iota;&kappa;&alpha;,,&alpha;&lambda;&lambda;&alpha; &sigma;&upsilon;&mu;&pi;&tau;&omega;&mu;&alpha;&tau;&alpha; &pi;&epsilon;&rho;&iota;&epsilon;&rho;&gamma;&alpha; &delta;&epsilon;&nu; &epsilon;&chi;&omega;..&pi;&epsilon;&rho;&iota;&mu;&epsilon;&nu;&omega; &sigma;&upsilon;&nu;&tau;&omicron;&mu;&alpha; &alpha;&pi;&alpha;&nu;&tau;&eta;&sigma;&eta; &sigma;&alpha;&sigmaf;..&epsilon;&upsilon;&chi;&alpha;&rho;&iota;&sigma;&tau;&omega;