UX-8 I is a habitable ocean world in the UX-8 system. There is native microbial life in the water.

In YE 36, this planet became part of the PAINT public transportation system and has a Tenba that regularly visits and provides passenger flights to Shinjuku Starport on Hanako's World.

In YE 41, this star system was conquered by forces from the Interstellar Kingdom Of Kuvexia during the Kuvexian Invasion of YE 41.

• Type Standard ocean
• Radius 6845.56 km (1.07 x earth)
• Surface Area 5.89 x 10⁸ km²
• Land Area 1.77 x 10⁷ km² (0.12 x earth)
• Mass 7.13 x 10²⁴ kg (1.19 x earth)
• Density 5.31 g/cm³ (0.96 x earth)
• Composition 31.1% iron, 28.0% oxygen, 16.2% silicon, 9.4% titanium, 7.7% sulphur, 7.5% other metals, 0.1% other elements

• Gravity 10.11 m/s² (1.03 x earth)
• Escape Velocity 11.77 km/s

• Period 26.37 hours
• Axis Tilt 40.54 °

• Water 98 %
• Ice 22 %

• Type Thin breathable
• Pressure 51.08 kPa (0.50 x earth)
• Composition 80.5% argon, 19.5% oxygen, trace other gases

• Min Temp 196 K (-76 °C, -104.8 °F)
• Avg Temp 292 K (19 °C, 66.2 °F)
• Max Temp 322 K (48.9 °C, 120°F)

• Chemistry Carbon
• Lifeforms Prokaryotic microbes

• 5 small moons, heavy radiation