Quote:
Originally Posted by loripo  Very impressive and needing an awful lot of knowledge. I just had a look at The Science of Light : Stellar Spectra
As I wasnt sure what the spectra showed - elements yes? Anyway I got this one right! |
Thanks for the excellent reference - I'll pass it on.
Theres is so much that a spectrum reveals - the chemical composition [via the dark lines], temperature and velocity of the star [eg Doppler Effect via a shift in the lines towards blue = approaching and red = receeding] and much more etc
My other youtube vid on quasar redshifts at
http://www.youtube.com/watch?v=FZn8g1A04a8 and sun's spectrum seen in a DVD at
http://www.youtube.com/watch?v=w0h6rIItnmc