Hubble's Law and the Hubble Flow and the Hubble Constant
The wording of Hubble's Law is wrong. The supposed Hubble Flow is wrong.
The concept of the Hubble Constant is wrong.
Hubble's law, also known as the Hubble–Lemaitre law, is the observation in physical cosmology that:
Objects observed in deep space—extragalactic space, 10 megaparsecs (Mpc) or more—are found to have a redshift, interpreted as a relative velocity away from Earth;
This Doppler shift-measured velocity of various galaxies receding from the Earth is approximately proportional to their distance from the Earth for galaxies up to a few hundred megaparsecs away.
Hubble's law is considered the first observational basis for the expansion of the universe and today serves as one of the pieces of evidence most often cited in support of the Big Bang model. The motion of astronomical objects due solely to this expansion is known as the Hubble flow.
My post on 4/10 noted scientists expect the hydrogen in intergalactic space will cause a red shift proportional to the distance the light travels through the hydrogen.
Therefore the observed red shift is proportional to the distance to the source.
Cosmologists make a mistake treating this red shift as a velocity. It is not related to velocity.
If a version of Hubble's Law persists it must be clear the relationship is between red shift and distance; there is no velocity in this relationship.
This red shift cannot be used to justify the supposed expansion of the universe.
My post on 4/13 observed a number of cases where cosmologists apply shifts in spectral lines incorrectly.
Clearly this is another case of such a mistake.
One consequence from this mistake is there is no justification for the supposed uniform expansion of the universe centered on Earth.
Very soon after this post, I posted a follow up about using absorption lines.
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Here is the list of topics in this Cosmology Topic Group .
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