Okay, I got the how of it, wrong, but the components right. And, it does have a visual component. Light going away from you is red shifted, coming towards you is blue shifted.
They use red shifting as an explanation for their BBT, but it doesn't actually support it. It merely explains how they can determine distance and direction.
Okay, I got the how of it, wrong, but the components right. And, it does have a visual component. Light going away from you is red shifted, coming towards you is blue shifted.
https://earthsky.org/astronomy-essentials/what-is-a-redshift/
They use red shifting as an explanation for their BBT, but it doesn't actually support it. It merely explains how they can determine distance and direction.