the temperature of stars
DESCRIPTION
The temperature of stars. As a guide to their ‘life story’. http://www.le.ac.uk/ph/faulkes/web/stars/r_st_evolution.html. Plot luminosity against temperature…. Hertzsprung-Russell Diagram. Gas cloud to protostar. Main Sequence. Our Sun. Hydrogen runs out, swells to be come red giant. - PowerPoint PPT PresentationTRANSCRIPT
The temperature of stars
As a guide to their ‘life story’
http://www.le.ac.uk/ph/faulkes/web/stars/r_st_evolution.html
Plot luminosity against temperature…
Hertzsprung-Russell Diagram
Gas cloud to protostar
Main Sequence
Our Sun
Hydrogen runs out, swells to be come red giant
Elements in a red
giant
http://www.astronomycafe.net/qadir/q2958.html
Comparison of sizes
http://www.profiledesigninc.com/OMOS-SO-Matrix-Reach4theStars-HR.html
Outer layers are shed leaving the core
Planetary Nebulae
http://www.astro.washington.edu/users/balick/WFPC2/plneb.jpeg
A cool, dim dwarf star…
Size of a white dwarf
http://www.astro.washington.edu/users/balick/WFPC2/plneb.jpeg
And then….
(Depending on the size….
Supernova
http://mephistope.homelinux.org/docu/0000/img/supernova/
Less than 25 times
bigger than our Sun
..then a neutron star
http://ircamera.as.arizona.edu/NatSci102/NatSci102/images/neu_star.jpg
http://usersguidetotheuniverse.com/wp-content/uploads/2011/04/xray_neutronstar.jpg
Or if more than 25 times bigger then our Sun…
http://keckobservatory.org/images/files/magazine/dec07_1_10.gif