T = 2π√(r/g)
r (distance from CoM to pivot point) = 0.082m
T = 2π√(.082/9.8) = 0.5747430876 sec
T = 2π√(Itotal/mrg)
Itotal = 0.0007999718 kgm^2
mr = (mbody*rbody + m1*r1 + m2*r2 + ...) = 0.008300083308 kgm
T = 2π√(.0007999718/(.008300083308*9.8))
= 0.6231074499 sec