What was Edwin Hubble's initial estimate for the Hubble Constant ($H_0$) published in 1929?
Answer
500 km/s/Mpc
Hubble's original calculation for the rate of cosmic expansion was approximately 500 km/s/Mpc, though this has been significantly revised by modern measurements.
Related Questions
In what year was Edwin Hubble born?What specific type of star did Hubble search for to measure extragalactic distances?When did Hubble earn his doctorate in astronomy?Which telescope did Hubble use at Mount Wilson for his landmark discoveries?What was the approximate distance Hubble initially calculated for the Andromeda Nebula (M31) in 1924?What major cosmological debate involving Harlow Shapley and Heber Curtis was settled by Hubble's findings around 1924?What is the structure organizing galaxies based on visual shape commonly known as?Which category in Hubble's scheme describes galaxies with a central bar of stars from which arms emerge?What relationship is formalized by Hubble's Law?What was Edwin Hubble's initial estimate for the Hubble Constant ($H_0$) published in 1929?What instrument was Hubble the first to use when it achieved first light in 1949?What fundamental concept did Hubble's discovery of expansion provide the empirical basis for?