Alien Species


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Cosmology of Elder Scrolls

Universe The Elder Scrolls Universe
Class Planet
Atmosphere Similar to Earth
Diameter Unknown
Mass Unknown
Gravity Similar to Earth
Notable Species Men

Nirn is referred to by otherworldly beings as the mortal plane and sometimes poetically called "the Mundus" by mortals.The exact reasons and specifics behind Nirn's creation are largely not known. However, all agree that the deity Lorkhan and the Eight Divines played pivotal roles in the creation of the waterlogged planet.[1][2][3] Two moons, Secunda and Masser, orbit Nirn. They are Lorkhan's sundered corpus.

Nirn is the center of Mundus, which itself is the "hub" of The Elder Scrolls universe's "wheel." The heavens beyond Nirn are star-filled. These stars are holes or portals through Oblivion to Aetherius, and carry magical significance due to the beings which tore them open, the Magna.

It is, of course, The Elder Scrolls equivalent of the planet Earth.

Creation mythsEdit

There are many theories on how Lorkhan created Nirn; ranging from the other Aedra agreeing to willfully help, to Lorkhan tricking them into it. However, it is universally acknowledged that the Aedra gave their energy and power for it, that the majority gave up on the project after realizing the cost, and that those who did not became the Eight Divines.

Lunar activityEdit

Two moons, Secunda and Masser, orbit Nirn. They are Lorkhan's sundered corpus. Masser, Nirn's larger moon, revolves around Nirn.

Axial tilt and climateEdit

It is never stated, but can be assumed, that Nirn's axial tilt is negligible, since days and nights remain more or less the same length throughout the year, even in the northern part of Skyrim. There also appears to be minimal variation in climate from month to month.

The northern regions are frigid. The land of Atmora, far to the north of Skyrim is said to be primarily frozen plain. Skyrim, and by some extension, Bruma, are typically snowy, especially farther north, towards Winterhold. Closer to the equator lies Elsweyr and Black Marsh, relatively tropical and warm locations.


The planet has a notably large continent, w:c:elderscrolls:TamrielTamriel, which is where all known Elder Scrolls activity take place, with another similarly large continent to the east, named Akavir. The land masses are separated by the Padomai Ocean, a massive saline body of water.

The cold, barren land of Atmora is to the north of Tamriel, which is where the Nords of Tamriel hailed from. To the west of Tamriel lies Yokuda, which was the former homeland of the Redguards of Tamriel. To the south-west of Tamriel lies Pyandonea. It is unknown if these are the only continents, as there are very few maps or globes showing all of Nirn. The known Nirn (the part that has been currently mapped) is 11 times smaller than Earth. Since they both have very similar gravity, it must mean that only a very small part of Nirn has been mapped or that Nirn's composition is different from Earth's.

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