Orbits and starlight: Earth and space science Free Practice Problems & Quiz Questions
A galaxy recedes at 1400 km/s. Using Hubble’s law with H₀ = 70 km/s/Mpc, how far away is it, in Mpc?
A galaxy recedes at 1400 km/s. Using Hubble’s law with H₀ = 70 km/s/Mpc, how far away is it, in Mpc?