your aparent father as you put it is Ea/ Enki the first born of An/ Anu (ruler of the Anunnaki). It was Enki who came up with the idea of geneticley engineering the Adapa (biblical Adam) when the toil of the Anunnaki on Earth became to much and they revolted. It was with the help of Ninti (the cheif nurse of the Annunaki) that this was made posible. Enki was cosiderd a great scientist and was eventualy given ruleership over the lower earth Africa being part of his rule. It was there he had seen an early ancester of humans and employed the help of Ninti to geneticly modify this primitive ancester to create the first human.
As for the planet Nibiru acording to Sitchin it has an eliptical orbit of 3600 years. It is hard to imagine a planet passing close to the sun and also passing beond what we know of our solar system. Most of the scholars who adopt sitchins interpratation of the sumerian mythology believe we will witness the next passage of Nibiru in our life time. Only time will tell.