  Fundamental constants are crucial for comprehending physical mechanisms, but
their measurements contain uncertainties due to experimental limitations. We
investigate the impact of system temperature on these uncertainties using
nearby white dwarfs observed in the Gaia Early Data Release 3 (EDR3) survey.
Using the structures of these white dwarfs, we show that the variation in
system temperature can affect the accuracy of measurements for fundamental
parameters such as the fine-structure constant and the proton-to-electron mass
ratio. This exploration emphasizes the importance of considering the energy of
a system while putting bounds on the values of fundamental constants.
