由 GMm/r^2=m4π^2r/T^2
T=(4π^2r^3/GM)^1/2 Ta:Tb=1:2*2^1/2
2π(1/Ta-1/Tb)Δt=2π
Δt=[GM/4π^2*R^3(1/8-1/64)]^1/2=[GM/4π^2*R^3(7/64)]^1/2
由 GMm/r^2=m4π^2r/T^2
T=(4π^2r^3/GM)^1/2 Ta:Tb=1:2*2^1/2
2π(1/Ta-1/Tb)Δt=2π
Δt=[GM/4π^2*R^3(1/8-1/64)]^1/2=[GM/4π^2*R^3(7/64)]^1/2