solar cycle length proves its the sun.
solar cycle length proves its the sun.
sun:286
the oscillation in the z direction takes the sun ( w ( 0 ) ν ) 2 + z ( 0 ) 2 = 98  parsec {\displaystyle {\sqrt {\left({\frac {w(0)}{\nu }}\right)^{2}+z(0)^{2}}}=98{\text{ parsec}}} above the galactic plane and the same distance below it, with a period of 2 π / ν {\displaystyle 2\pi /\nu } or 83 million years, approximately 2.7 times per orbit.