Vega

Constellation:

Lyra

https://upload.wikimedia.org/wikipedia/commons/thumb/2/27/LyraCC.jpg/256px-LyraCC.jpg

Star: 
Vega

http://vignette2.wikia.nocookie.net/starseedunited/images/c/c5/Vega.jpg/revision/latest?cb=20141109193933

Chemical Composition: 
Hydrogen is most abundant

Location: 
Right Ascension: 18h 37m 27s
Declination: +38° 47' 59"

Spectrum Analysis of Most abundant chemical: 
Hydrogen

Stellar Classification:
A0 (White main sequence star)

Citations: 
http://www.glyphweb.com/esky/stars/vega.html
http://www.astronoo.com/en/stars.html
http://www.umop.net/spctelem.htm