71 km/s/megaparsec (hubble constant) or 186,000 m/s (speed of light)?

Question

which is faster?

Answer 1

The Hubble parameter is not a speed, the units are (length per time) per length, ie. measured in seconds^-1, so you can't ask which is faster.

Answer 2

Speed of light

Answer 3

Your speed of light is wrong. 186,000 m/s is not even one percent of the speed of light (which is roughly 300,000 km/s).

Also, the hubble constant is no velocity - it is not even a classic acceleration, but a description of the expansion speed of the universe by distance from Earth.

So, the answer is: You can't compare both. It is impossible even if you would have supplied the right number.

You can only say: After 4225 Megaparsec, the observed expansion speed of the universe, relative to Earth exceeds the speed of light  or in 13 billion light years.

This also means roughly for us: The expansion speed of the universe was at the speed of light 13 billion years in the past, as the hubble constant only describes the observation, but the cause.

Answer 4

Scratching my head here...

I don't think you are dealing with equivalent statements of

velocity which can be compared. Angular movement

through the sky can only be related to pure velocity if you

include the distance from the observer to the object that is moving.