Today's Daily Brain Teaser (Aug 24, 2013)

The Shining



I with borrowed silver shine,

What you see is none of mine.

First I show you but a quarter,

like the bow that guards the Tartar;

Then the half, and then the whole,

ever dancing around the pole;

And true it is, I chiefly owe

my beauty to the shades below.



Who am I?





Check Braingle.com for the answer.