↩ 🔵 🔵 🔵 ❪∂_❫ Astronomical Subs ○ Mass Function (f₍M₎≡P𝘰𝘳𝘣K₂³∕2πG=M₁sin³i∕₍1+q₎²) ○￩ Mass Ratio (q≡M₂∕M₁) ○￩ Source Mass (M) ○◂ Secondary Mass (M₂) ○◂