Red dot on pictures taken with D800E

Thank you for your responses.  I was thinking it could be sun but what really threw me off was the fact that this ghosting effect was so concentrated and intense.  I thought it would be more flarred.

In any case, I am really glad it's not my camera!

Btw, I don't use filters on my lenses.  My focusing technique is weak and putting anything in front of my lenses would just expose my flaws even more.  That is in part why I bought E version of D800  

Thank you once more for your answers.