The Hubble constant is approximately 70 km/sec/Mpc. Roughly how far away is a galaxy with an apparent recession velocity of 7000 km/sec?

Question

Quizplus · Accepted Answer

The Hubble constant relates the recession velocity of a galaxy to its distance. Using the formula v = H0 * d, where v is the velocity (7000 km/sec), H0 is the Hubble constant (70 km/sec/Mpc), and d is the distance, we find d = v / H0 = 7000 / 70 = 100 Mpc.

The Hubble Constant Is Approximately 70 Km/sec/Mpc