1 grad are 60 minute de grad = 3600 de secunde de grad
15391 : 3600 = 4,27527 grade luam doar partea intreaga = 4 grade
4,27527grade - 4 grade = 0,27527 grade
0,27527 x 60 = 16, 516 minute =doar partea intreaga =16 minute
16,516 minute - 16 minute = 0,516 minute
0,516 x 60 = 31 secunde
15391 secunde = 4 grade 16 minute 31 secunde
