When ⁴He is cooled below 2.17 K it becomes a “superfluid” with unique properties such as a viscosity approaching zero. One way to learn about the superfluid environment is to measure the rotational–vibrational spectrum of molecules embedded in the fluid. For example, the spectrum of OCS in a low-temperature ⁴He droplet has been reported (Journal of Chemical Physics 112 [2000]: 4485). For OC³²S the authors measured a rotational constant of 0.203 cm⁻¹ and found that the intensity of the J = 0 to 1 transition was roughly 1.35 times greater than that of the J = 1 to 2 transition. Using this information, provide a rough estimate of the temperature of the droplet.