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The planet Omoa is the second celestial body of the class K star Ekum. It's the home of the humanoids and all known lifeforms.
The mass of Ekum is about 80% of our sun. The star has been around since 5.6 billion earth years. As an orange dwarf, it appears as a bright orange disk on the skies of Omoa.
| Order | Name | Type | named for |
| 1 | Mona | lava planet | deity of justice, bjn. |
| 2 | Omoa | ocean planet | "world", bjn. |
| 3 | Junu | desert planet | god of householding, bjn. |
| 4 | Ipzi | ice planet | goddess of sailing, bjn. |
| 5 | Midí | gas giant | main ancestor, or. |
| 6 | A̋ning | ice giant | or. |
After Ipzi there's an asteroid belt with many small celestial bodies. Beyond the planet of A̋ning, there are also smaller planets, so called gnome planets, who are not included.
Mona is the first planet of the "inner planets". It is continuously in transit with the home star Ekum, which led to its development as a lava planet. While the hot substance covers most of its surface, some parts are spared. Nonetheless, you can find rivers of lava there.
Omoa is the second planet of the "inner planets". It's covered in a great ocean with only some landmasses inhabited by terrestrial species. Out of all the "inner planets", Omoa is definitely the biggest one, as it has 1.8x the mass of earth and therefore 1.3x the radius of earth.
The air pressure of the ocean world is a bit higher than on earth. Almost 36% of its atmosphere is O2, making exotic fauna and flora possible. An example are giant arthropods, similar to the animals during the Carboniferous period.
Counting in earth days, one year on Omoa is approximately 232.6 days long. One month containts 25 days, and the regular day on Omoa is about two hours longer than on earth. In a solar calender, the Omoan year would consist of 9 months à 24 days.
Two moons orbit the planet: Alek and Joa. The first moon Alek is the bigger counterpart and tinted in a sandy yellow color. It contains several craters as well as a giant system of valleys. Joa, however, is much smaller and red-brown colored.
Junu is the third planet of the "inner planets". It's a bit smaller than Omoa, generally a desert planet and has one moon called Momi. Thanks to a special composition of metals and elements, the desert appears blue-green. This has earned it the name of "the green planet" in many languages. While it isn't in the habitable zone of the Ekum system, many people deem it possible to construct colonies there.
Ipzi is the fourth and last planet of the "inner planets". While I've described it as an ice planet, it doesn't completely consist of water. However, under its thick ice mantle exists a submerged ocean. Out of all the "inner planets" Ipzi is the smallest one. Similar to Enceladus the planet possesses cryovolcanoes and possibly hydrothermal activity.
Midí is the first planet after the asteroid belt and therefore counts as an "outer planet". It's a relatively big gas giant with a prominent ring system. Many moons orbit the celestial body but only three are of major value: Fäbíng, Albuno and Mis. They can be compared to Io, Europa, and Titan.
A̋ning is the last planet of the star system and the farthes away from Ekum. It's a relatively big ice giant, but not as big as Midí. Similar to Neptune, its surface is blue.