CLEA Exercise - The Hubble Redshift-Distance Relation information.In order to verify your conclusions, I suggest you contact Project CLEA (Gettysburg College), the application developers. You can get in touch with them using 717-337-6019 phone number or firstname.lastname@example.org email address.
Purpose: To illustrate how the velocities of galaxies are measured using a photon-counting spectrograph. To show how this information, along with estimates of galaxy distances (from their integrated apparent magnitudes) yields the classic Hubble redshift- distance relation. To determine the value of the Hubble parameter and the expansion age of the universe.