Masser is the larger of the two moons of Nirn, and is red in color.
The astronomic definitions of both Masser and Secunda are prone to much discussion. At first glance, both seem to be moons of Nirn; however, it seems that in The Elder Scrolls IV: Oblivion, Secunda actually revolves around Masser.
Lorkhan, "The Missing God", was sundered into two halves during his destruction, becoming both Masser and Secunda. . The two moons symbolize his duality, reminding his man-creations of his struggle.
Masser was titled by the Aldmeri.
- Masser is similar to the planet Mars, in both color and name. In fact, in The Elder Scrolls IV: Oblivion it was shown as a recolored picture of Mars in the skybox.
- Massar (مسار) is the Arabic word for "path" or "path follower".