Shown below is an HR diagram for a cluster of stars. The stars that are not on the main sequence... are stili focming and will reach thic main sequence eventuilly have stared dying and moved off it towards their end won't eveh reach the main sequence because they have too much frellum. used to be white dwaifs that are growing intar red giarts Won't eyen ie ach the mairi sequence becquse they ate too cold.