Sirius

http://stars.chromeexperiments.com/

Chemical Makeup: Mostly Hydrogen

Right Ascension: 6h45m8.871s

Declination: -16°42'57.99"

Stellar Classification: A

Spectrum Analysis:

http://www.umop.net/spctelem.htm

Sources: 

Internet STELLAR DATABASE. (n.d.). Retrieved September 30, 2015, from http://www.stellar-database.com/

Stars. (2013). Retrieved September 30, 2015, from http://www.astronoo.com/en/stars.html