Nirn

Nirn
Nirn is the planet which all other celestial bodies revolve around, save Magnus.It is within the boundaries of the plane of Mundus. Most say it was created by Lorkhan and the Divines played roles in its creation. It is the planet hosting all mortal life, as well as some immortal life. Godly or immortal beings refer to the planet as the Mortal Plane.

History
Many theories of how Lorkhan created Nirn are in place today. Some believe that Lorkhan decieved the Aedra to do it, although some also believe that they willingly aided him in his project. Despite this, there is no doubt that the Aedra devoted their will and energy to do it. There is no doubt that the majority of Aedra contributors gave up on the project after realizing the cost far outweighed the product.

Conditions and Climate Activity/ Axial Tilt
As there is no real [stated] monthly or yearly change in Nirn's axial tilt, there in turn can be no seasons or time-affected change in climate. However, climate does change with the regions and their relativity to height.

Lunar Activity
Nirn has two moons, Masser and Secunda. Masser revolves around Nirn itself, but if observed in the nighttime sky in The Elder Scrolls IV: Oblivion, and in The Elder Scrolls V: Skyrim, Secunda in fact revolves around Masser.

Geography
There are three main supercontinents on Nirn, as well as two other continents and a large island chain. They are Tamriel, Akavir, Atmora, Yokuda, Aldmeris, and Pyandonea. Tamriel is the continent that harbors all known races of men and mer, as of the Fourth Era. Akavir hosts most predominantly the Dragon race, as well as monkey men and a few others. Atmora at one time held the Atmoran people, until it became too frigid for them to survive and they migrated permanently to Tamriel. Yokuda was the home of the Redguards, before it sank into the sea. Aldmeris was the original home of all Mer. Pyandonea is the home of the Maormer.