The constant of proportionality between distance and recessional velocity is termed his namesake constant.
It's not the scaling parameter or the speed of light, but one parameter named for this man is squared in a non-relativistic version of Friedmann's equation. One system he helped create was modified by Gerard du Vaucouleurs to account for rings and lenses. That system classifies galaxies based on bars and spiral arms, and is known as his namesake tuning fork diagram. The constant of proportionality between distance and recessional velocity is termed his namesake constant. He is notable for proving the expansion of the Universe. Name this man who is the namesake of an optical space telescope.
It's not the scaling parameter or the speed of light, but one parameter named for this man is squared in a non-relativistic version of Friedmann's equation.
Edwin {Hubble}