2023. Comparison of the Structure of Spiral and Lenticular Galaxies, NGC 4305 and NGC 4203 as a Sample: Astronomy And Space Department, College of Sciences, University of Baghdad, Baghdad, Iraq. Iraqi Journal of Science. 64, 4 (Apr. 2023), 2051–2059. DOI:https://doi.org/10.24996/ijs.2023.64.4.39.