Tuanziturn
Tuanziturn
Orbital
| Parent Body | Trivarion |
|---|
Physical
| Class | Terrestrial Exomoon |
|---|---|
| Diameter | 10,767 km |
| Mass | 0.65 Earths |
Tuanziturn is the second moon from Trivarion and is the second largest body orbiting it. It is purple in appearance.
Tuanziturn is the closest moon to Ariri and the potentially the easiest to reach, requiring the least delta-v of any moon. However, a slight inclination relative to Ariri makes encounters slightly harder. Having a similar size to Earth gives it a large gravity well. The result is that it requires the most delta-v of any celestial body with a solid surface to escape from it. Its thick atmosphere (much thicker than Ariri's or even Ormathys) makes aerocaptures and landings easy, but makes a start from sea level even harder because most fuel will be wasted on overcoming atmospheric friction.
The combination of lower gravity and thick atmosphere makes return missions from the sea level of Tuanziturn very difficult. Tuanziturn is 10,767 km in diameter, making it 335 km larger than Ariri, and the second largest moon in the Trivarian Satellite system.
Atmosphere
Tuanziturns atmosphere begins at 96 km and is extremely dense: at 11,250 m, it's as thick as Earths atmosphere at sea level (1 atm), and at Tuanziturn sea level the atmospheric pressure is 5 atm. Its atmospheric pressure fades exponentially, with a scale height of 7000 m. The atmosphere should be superheated due to the thick atmosphere trapping in heat, much like Venus.
From within Tuanziturns atmosphere, the sky appears indigo during nighttime. During dawn and dusk, the sky is green. The atmosphere is possibly composed of iodine, given its purple coloration. Jet engines do not function in Tuanziturn's atmosphere, since it contains no oxygen — they make noise and consume fuel, but they produce no thrust. Planes with other propulsion methods do however work very well in Tuanziturns atmosphere and are a great way to explore the planet. Try to stay on a height between 35 km and 25 km where the atmosphere generates enough lift to glide and steer, but not so much drag that it slows you down too much.