1 c2 = 0.014387768775039337 m*K; The physical unit "c2" is a constant related to radiation. It is known as the second radiation constant. (review pending)

1 be_wien = 0.003002916077 m*K; The "be_wien" is a unit (review pending), representing the Wien entropy displacement law constant. It is used to quantify entropy displacement in terms of wavelength and temperature.

1 bw_wien = 0.002897771955 m*K; The physical unit "bw_wien" is a constant related to Wien's displacement law, representing the peak wavelength of blackbody radiation. (review pending)