A composite image of Mercury
|Orbital distance||0.4 AU|
|Day length||58.6 Earth days|
|Year length||88 Earth days|
|Atmosphere composition||42% oxygen, 29% sodium, 22% hydrogen, 6% helium, 0.5% potassium, trace other|
|Factions||Eteno Imperial Triumvirate|
|Major imports||Industrial supplies|
Mercury is the first planet in the Sol system.
Mercury is the smallest terrestrial planet in the Sol system, even smaller than the largest satellites of Jupiter and Saturn. However, Mercury is incredibly rich with metals, and possesses a dense iron core. Although Mercury-like worlds are desirable for colonization, Mercury itself is too close to Sol to be of any real use.
Mercury is littered with craters due to its thin atmosphere. These craters range in many sizes, the largest having a diameter of 1,550 km.
Mercury has a slight axial tilt and has a long day/night cycle as a result of being close to its star.
Mercury is the home of a small Eteno Imperial Triumvirate mining operation. A small number of core pumping facilities supply iron to in-system industries.