4.1 What Do You Notice?<p><span style="line-height: 16.8px; font-size: 16px;">Now let's expand on an idea you touched on earlier, the HR Diagram. Work with your classmates to make a list of things you notice about the HR Diagram in the discussion board below. Try not to repeat ideas but it is okay to expand on ideas.</span></p> <p><span style="font-size: 16px;"><img src="$IMS-CC-FILEBASE$../resources/400px-Hertzsprung-Russel_StarData_571c1786d9afb.png" alt="" width="591" height="625" id="" title="" /></span></p>