The generalized compton effect in the spectrum of Canopus

The redshift _c caused by the scattering of photons in the chromosphere of Canopus and in the interstellar matter is obtained from the measurements of wavelength, intensity and equivalent width of 191 spectral lines published in 1942. The result is _c with a new radial velocityV_r=–3.3±2.4 km s^–1. The reliability of the results is briefly discussed.