How to Get Intense Light Star for Spectrum Analysis

[sadegh4137]

i and my friend want to have spectrum of star.
i need star light with high intensity to diffract this.
unfortunately, we don't know how we can have a intense light?

do you know how we can do this?
or
in general, how can we have spectrum of light star?

 

[Nik_2213]

The most convenient star for this purpose is our Sun.
http://en.wikipedia.org/wiki/Fraunhofer_lines
http://pandasthumb.org/archives/2010/07/fraunhofer-line.html

( Prompt Blinding Danger: Do not look at Sun directly or through optics *unless* you have interposed an appropriate 'eclipse-grade' filter. Do not repeat mistake with other eye... ;-)

Beyond that, you could try Sirius, but you may need a long exposure to coax a spectrum from your prism or diffraction grating, and you are unlikely to see 'lines'...

 

[Drakkith]

The best method I THINK would be to project the light through a prism or diffraction grating and onto a CCD camera or something similar. That way you can take a long exposure of the accumulation of light and possibly see it in the picture.