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.
Sirius â in the constellation Canis Major the Greater Dog â is the skyâs brightest star. Itâs very easy to spot on winter and spring evenings. The brightest star visible from any part of Earth is Sirius in the constellation Canis Major the Greater Dog. Sirius is sometimes called the Dog Star. Follow the links below to learn more about Sirius, the Dog Star and brightest star.