From what I understand: 1. The more massive the object, the stronger the gravitational field. This leads to the light being emitted from the surface to shift down in frequency. 2. The rate of expansion of the universe causes a redshift proportional its distance away. I'm new to this, but let's give it a shot: In general, how are the Hubble's Law measurements different for let's say, a very large galaxy and a small one, i.e., how are the two shifts differentiated? P.S. Thanks!