Source: wikibot/doppler-parameter
= Doppler parameter
{wiki=Doppler_parameter}
The Doppler parameter, often denoted as \\( \\beta \\), is a dimensionless quantity used to describe the relativistic effects of motion in the context of Doppler shift, particularly in astrophysics and cosmology. It is defined as: \\\[ \\beta = \\frac\{v\}\{c\} \\\] where: - \\( v \\) is the relative velocity of an object moving away from or towards an observer, - \\( c \\) is the speed of light in a vacuum.