- Summary
- The universe is still expanding faster! The maximum expansion speed can reach the speed of light C! Thereafter, the expansion rate slowed down.

Hubble's Law and Star Velocity

By using Hubble's law and the principle of velocity superposition of relativity, we can deduce when the distance of star from the observation point is (photometric distance)r, its velocity V can be expressed as:

V = Csin (Hr/C)

Therefore, the following conclusions are drawn:

The universe is still expanding faster! The maximum expansion speed can reach the speed of light C! Thereafter, the expansion rate slowed down.

The maximum radius of the universe is 3.14 times that of today.

By using Hubble's law and the principle of velocity superposition of relativity, we can deduce when the distance of star from the observation point is (photometric distance)r, its velocity V can be expressed as:

V = Csin (Hr/C)

Therefore, the following conclusions are drawn:

The universe is still expanding faster! The maximum expansion speed can reach the speed of light C! Thereafter, the expansion rate slowed down.

The maximum radius of the universe is 3.14 times that of today.