Polaris

Polaris

I chose this star because it is very popular, often called the North Star, and it is currently the northern pole star. It is the brightest star in the constellation Ursa Minor and the 50th brightest in the entire sky. Being the closest Cepheid variable, or star that is constantly changing, to the earth, it is important to get an accurate measurement of its physical parameters for the entire rest of the distance scale.

http://phys.org/news/2008-07-pole-star-life.html

• Star: Polaris

• Chemical Components: Metals: Magnesium, Calcium, Titanium, Iron, Strontium; Hydrogen and ionized Calcium

• Location in space: 
• Right Ascension- 2 Hours 31 Minutes 149.09 seconds
• Declination: +89 degrees 15' 50.08

• Spectrum analysis of most abundant chemical: Hydrogen https://en.wikipedia.org/wiki/Hydrogen

• Stellar Classification: F7 Bright yellow supergiant

http://www.themcdonalds.net/richard/index.php?title=Finding_Polaris,_the_North_Star


References:
https://en.wikipedia.org/wiki/Polaris
http://kendallschemblog.blogspot.com/p/resources.html