%0 Journal Article %T Relativistic Motion with Viscosity: II Stokes¡¯s Law of Resistance %A Lorenzo Zaninetti %J International Journal of Astronomy and Astrophysics %P 481-488 %@ 2161-4725 %D 2021 %I Scientific Research Publishing %R 10.4236/ijaa.2021.114025 %X The deduction of a relativistic and mildly relativistic equation of motion in the presence of a drag force proportional to the velocity is presented. The obtained results are used to model the trajectory of the supernova SN1993J and the light curves of gamma-ray bursts. %K Supernovae %K General Supernovae %K Individual (SN 1993J) ISM %K Supernova Remnants GRB %K Individual (GRB 130427A) GRB %K Individual (GRB 120521C) GRB %K Individual (GRB 130606A) %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=113134