Department of Homeland Security. The agencies slated to become part of the Department of Homeland Security will be housed in one of four major directorates: Border and Transportation Security, Emergency Preparedness and Response, Science and Technology, and Information Analysis and Infrastructure Protection.
On the H-R diagram, stars are not uniformly distributed. The  main-sequence stars appear in decreasing order, from hotter, more  massive blue stars to cooler, less massive râ¦ed stars. The stars nearest to Earth are not very bright, and thus appear at the bottom right of the H-R diagram, instead of the top of the diagram like the brightest stars.
Worksheet: Stars and the H-R Diagram. Background: The Hertzsprung-Russell diagram is actually a graph that illustrates the. relationship that exists between the average surface temperature of stars and their. absolute magnitude, which is how bright they would appear to be if they were al the. same distance away.