1. Castor One of the Brightest Stars in the Sky By John Kilmer

2.  Castor is a blue star  The diameter is 2,086,500 km  Castor is 552 light years away the sun  Its temperature is 10,300 degrees Kelvin The sun is yellow

3.  Castor was born from the Nebula  Castor will die and become a neutron star  Castor is 200 million years old but it lives to be 1 billion years old so it is still young  Castor is currently a High-Mass star

4. This is just about where castor is.

5.  Castor is in the constellation Gemini  The story behind castor is Castor and pollux are the two heavenly twins which make up Gemini which in Latin means twins.  Some people thinks castor means beaver and others think that it stands for Castor one of the twin sons of Zeus and Leda.

6.  Http://en.wikipedia.org/wiki/Castor_(star) Http://en.wikipedia.org/wiki/Castor_(star)  http://seds.org/Maps/Stars_en/Fig/gemini.ht ml http://seds.org/Maps/Stars_en/Fig/gemini.ht ml  http://blog.globalstarregistry.org/name-of- stars-in-gemini-constellation/ http://blog.globalstarregistry.org/name-of- stars-in-gemini-constellation/