System Specs:
- Stellar Mass: 1.11 Sol Masses
- Stellar Class: F
- Luminosity: N/A Sol
- Planets: 4
- Moons: 0
- Asteroid Belts: 0
- Asteroids: 0
- Objects: 3
Osun is a gateway system. The system and its planets all have names taken from Yoruba mythology. The Yoruba people are a Nigerian tribe.
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Planets Directory:
- Orunmila
- Purgatory
- Erinle
- Aganju
- fuel depot
- Olokun
- Mass Relay
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Orunmila:
- Orbital Distance: 0.5 AU
- Orbital Period: 0.3 Earth-years
- Keplerian Ratio: 1.389
- Radius: 34,653 km
- Day Length: 13.7 Earth-hours
- Atmospheric Pressure: N/A atm
- Surface Temp: N/A °C
- Surface Gravity: N/A g
- Mass: N/A Earth-masses
A medium-sized gas giant, Orunmila is close enough to its parent star to suffer massive changes in temperature during its day and night periods. This leads to powerful convection currents and storms throughout its hydrogen/helium atmosphere. Gathering helium-3 to refuel is possible for the hardiest of exploration craft, but lesser ships are nearly always lost in the attempt.
Orunmila is within the “frost line” of its solar system, where icy-cored gas giants do not usually form. For this reason, it is believed to be an extrasolar planet captured by its star’s gravity.
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Purgatory:
Purgatory is a maximum security prison starship owned and run by the Blue Suns. Warden Kuril is the current facility administrator. Purgatory is where Commander Shepard can recruit Jack, a dangerous and highly unstable biotic.
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Erinle:
- Orbital Distance: 0.95 AU
- Orbital Period: 0.9 Earth-years
- Keplerian Ratio: 1.058
- Radius: 6,711 km
- Day Length: 32.4 Earth-hours
- Atmospheric Pressure: 1.1 atm
- Surface Temp: 32 °C
- Surface Gravity: 1.1 g
- Mass: 1.209 Earth-masses
- Colony: Salarian
Erinle is a garden world in its last stages of habitability. While its soil still supports agriculture, its animal biodiversity has fallen to record lows, and the most successful remaining life is toxic blue-green algae and insect-like pest species. A large salarian colony is trying to restore biodiversity to the planet, but setbacks are a fact of life. Mineral and fuel mining remains lucrative, however, and Erinle has a thriving spaceport that refuels many ships passing into the Terminus Systems.
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Aganju:
- Orbital Distance: 3.2 AU
- Orbital Period: 5.7 Earth-years
- Keplerian Ratio: 1.009
- Radius: 10,008 km
- Day Length: 23.3 Earth-hours
- Atmospheric Pressure: 0.02 atm
- Surface Temp: −93 °C
- Surface Gravity: 5.3 g
- Mass: 12.953 Earth-masses
Aganju is an extremely large rock planet with a thin atmosphere of hydrogen and carbon monoxide. Abundant in both copper and platinum, the crust has been scanned by mining bots from Erinle, but the specialized equipment to work in Aganju’s heavy gravity (more than 5 G’s) has created prohibitive costs, and so Aganju is largely unexploited.
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Olokun:
- Orbital Distance: 6.0 AU
- Orbital Period: 14.7 Earth-years
- Keplerian Ratio: 1
- Radius: 64,718 km
- Day Length: 11.9 Earth-hours
- Atmospheric Pressure: N/A atm
- Surface Temp: N/A °C
- Surface Gravity: N/A g
- Mass: N/A Earth-masses
Olokun (‘sky harvest’) is a standard gas giant composed of hydrogen and helium. The spacefarers from Erinle gather helium-3 from here rather than Orunmila, as its atmosphere is much more predictable.
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