Name

P (years)

Type

SC

11.07

Schwabe Sunspot Cycle (variable)

PJ

11.86

Jupiter orbit

LN

18.61

Lunar nodal

PJS

l9.86

Jupiter-Saturn synodic

SH

22.3

Hale solar magnetic (variable)

PS

29.46

Saturn orbit

PSU

45.36

Saturn-Uranus synodic

PU

84.01

Uranus orbit

PG

88±1

Solar Gleissberg (variable)

PJo

178.7

Jose Solar system (variable)

PdV

208

Solar deVries