Um, so the years described in the Bible are supposed to be referring to the rotation of an arbitrary object in the universe without mentioning this?
How can you make this assumption?
You never know. The Bible itself isn't a book of facts. It's a collection of parables intended to help guide a person towards a more moral standing that improves quality of life not just for oneself, but for the community around them. If you accept everything as whole full-bodied truth, then you've never understood religion to begin with.
I make this assumption because I believe that science is the answer in understanding god and how he works, not a means to deny his existence. After all, science and math was created to find a means to get closer to god. You may think him as a non present entity now, but you can not deny that without him, we'd hardly be as advanced today as we probably could be.