In Hubble's Law ($v = H_0 \times d$), what quantity is recessional velocity ($v$) directly proportional to?
Answer
Distance ($d$).
Hubble's Law establishes a linear relationship where the speed at which a galaxy appears to move away from us (recessional velocity, $v$) is directly proportional to its distance ($d$), with the Hubble Constant ($H_0$) being the constant of proportionality.
#Videos
How Do We Measure Distance In The Universe? - YouTube
Related Questions
What analogy is used to describe the layered approach of the Cosmic Distance Ladder?To what distance range is the direct geometric method of parallax effective?What fundamental relationship did Henrietta Leavitt discover regarding Cepheid variable stars?Besides Cepheid variables, what other standard candle is mentioned as a benchmark for closer galaxies?Why do Type Ia Supernovae exhibit nearly uniform peak brightness across the universe?What physical effect causes the spectral lines of distant galaxies to shift toward the red end of the spectrum?In Hubble's Law ($v = H_0 \times d$), what quantity is recessional velocity ($v$) directly proportional to?How do astronomers typically infer the presence and distribution of dark matter in spiral galaxies?What is the critical vulnerability affecting the entire Cosmic Distance Ladder structure?What specific capability of the James Webb Space Telescope aids in observing distant standard candles?