unit1astrophysics

=Unit 1 Astrophysics Detailed Study Investigation= //**usually attempted in semester 2 for Unit 2**// =Hertzsprung–Russell diagram = = = = = = = =This diagram shows the relationship between absolute magnitude, luminosity, classification, and effective temperature of stars. The diagram was created in 1910 by Ejnar Hertzsprung and Henry Norris Russell and it represented a huge leap forward in understanding stellar evolution, or the 'lives of stars' . Most of the stars occupy the region in the diagram along the line called main sequence. They are the ones that are in the middle of their life. Stars that are below that are white dwarfs and they are stars in their early stages. Stars above the main sequence are giants and super giants, which are towards to end of their life as a star. = = = =[] tons of info about the sun-Lachlan =

• http://www.big-bang-theory.com/ - An interesting article about the Big Bang theory- Tom B.