Demeter
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Demeter is the only terrestrial body in the Tau Ceti system with liquid water. Its low escape velocity would normally leak its oxygen-rich atmosphere, but the moon travels well within Zeus' magnetosphere, and thus retains its atmosphere. While not as warm as its neighbor, Olympia, it's carbon dioxide combined with water vapor makes the moon suitable for human life.
Moon Properties
- Classification: Garden Terrestrial Moon
- Surface Temperature: +6C
- Orbital Distance: 1.8 light-seconds
- Month⊕: 8 days, 14 hours, 48 minutes, 11 seconds
- Day⊕: 8 days, 14 hours, 48 minutes, 11 seconds
- Mass⊕: 0.08 Earths
- Radius⊕: 0.43 Earths
- Surface Gravity: 0.43g
- Escape Velocity: 5.43 km/s
- Magnetosphere: Weak
- Radiation: Low (Ozone Layer)
- Atmosphere: 1 atm (77 N2, 21% O2, 1% Ar)
- Population:
by OpenAI’s DALL·E via ChatGPT
Tau Ceti II-2
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