The 9 and 56 year cycles are based on the angles 0 and 180 degrees between the Sun, Moon and lunar nodes and repeat to within one degree .
(The 9 and 56 year cycles; are based; on the angles 0 and 180 degrees between the Sun, Moon and lunar nodes) (The 9 and 56 year cycles; repeat; to; T:within one degree)
The 9 and 56 year cycles The 9 and 56 year cycles
are based repeat
on the angles 0 and 180 degrees between the Sun, Moon and lunar nodes
to T:within one degree