The Hubble relation links which two characteristics of distant objects in the universe?
A) distance and recessional velocity
B) luminosity and surface temperature
C) state of organization and the ages of clusters of stars
D) stellar mass and luminosity

Question

Quizplus · Accepted Answer

The Hubble relation, also known as Hubble's Law, establishes a direct correlation between the distance of a galaxy and its recessional velocity, observed through the redshift of its light. This relationship is foundational in cosmology for understanding the expansion of the universe.

The Hubble Relation Links Which Two Characteristics of Distant Objects