Example 2

Titan - P₀ = 1.6 bar, g= 1.36 m s^-2

Mc = P₀ /g = 1.6 x 10⁵ Pa / 1.36 m s^-2 = 1.2 x 10⁵ kg m^-2 - that's 120 tons of atmosphere above every square meter! or 12 times the mass per unit area of Earth's atmosphere.

Mulitplying by the area of Titan 4 p R² => 10¹⁹ kg total mass. That's twice the total mass of Earth's atmosphere. WHY?! Divide by the mass of the Titan (0.135 x 10²⁴ kg) - the atmosphere is still only 0.007% the mass of the moon.