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Habitability
50/ 100
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Lura
- Mass
- 5.50 × Earth
- Radius
- 1.77 × Earth
- Gravity
- 1.77 g
- Surface
- 265 K
- Year
- 573 days
- Day
- 24.0 hrs
- Mass
- 5.50 × Earth
- Radius
- 1.77 × Earth
- Gravity
- 1.77 g
- Surface
- 265 K
- Year
- 573 days
- Day
- 24.0 hrs
Lura1.35 AURocky TerrestrialYou are here
Habitable zoneDebris belt
Star and planets drawn to scale (a typical star of its class), with only the star's edge in view. Orbits spaced as in the star system view.
Lura's moons
2 moons
LunorOcean · 285,500 km
XenorVolcanic · 88,400 km
Planet, moons and orbits drawn to one scale; the smallest moons are enlarged so they can be seen.
The largest of Lura's two moons is Lunor, seeded with life and prospering in the wake of the planet's rings.
Surface. Rocky surface with impact craters, possible volcanic features
✓ Conditions could support life. This planet’s modelled conditions could support biological processes: stable temperatures, liquid water and the chemistry life as we know it needs. That makes life possible, not present.
Rocky Terrestrial
✦ Iella
Your planet is dominated by silicate (3.9%) and iron (8.0%) content, forming a rocky terrestrial body.Life possibleMagnetic FieldExtreme Activity
Rocky terrestrial planets are primarily composed of silicate rocks and metals. They're the most common type of small planet in the universe.
Classification Criteria:
✓ Silicon: 3.9% + Iron: 8.0% + Magnesium: 4.4%✓ Mass: 5.5x Earth (terrestrial range)
Habitability ScoreMarginal
Contributing Factors
water93
Abundant water - mostly frozen
geology50
Extreme volcanic activity may be hazardous (tidal flexing sustains geologic activity)
rotation10
Near tidally locked - one hemisphere perpetually scorched, other frozen, narrow habitable twilight zone only
Organic Chemistry100
All CHNOPS elements present - building blocks of life — but the ground itself is radioactive, and no magnetic field shields a world from its own crust
atmosphere28
Thin CO₂ and nitrogen atmosphere
Nitrogen atmosphere provides protection but not breathable (partially stripped by slow rotation)temperature75
Challenging but potentially habitable temperature (large moon stabilizes the axial tilt - steady seasons)
magnetic Field100
Magnetic field provides radiation protection (a large close moon may help stir the core dynamo (speculative))
Physical Properties
Mass
5.50x Earth (3.28e+25 kg)Radius
1.77x Earth (11,246 km)Surface Gravity
1.77x Earth (17.3 m/s²)Surface Temperature
265 K (-8 °C / 18 °F)Rotation Period
24.0 hours/dayElemental Composition
Closest Real Exoplanet
LHS 1140 b86% similar
Orbiting LHS 1140| Yours | LHS 1140 b | |
|---|---|---|
| Mass | 5.50 × Earth | 5.60 × Earth |
| Radius | 1.61 × Earth | 1.73 × Earth |
| Density (composition) | 7.33 g/cm³ | 5.96 g/cm³ |
| Temperature | 265.1 K | 226.0 K |
| Starlight received | 0.55 × Earth | 0.43 × Earth |
| Star temperature | 5,600 K | 3,096 K |
Moons
LunorrecedingOcean worldWater ice
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal braking locked the planet to its moon: one face forever moonward.
Massive enough to keep its water, but too cold for it to melt: an ice-covered surface.
A thin tidal-warmed subsurface ocean may exist, but conditions are marginal (5/100).
Moon 2rings
Inside the Roche limit (1.92 planet radii): torn apart into a ring system.
Moon 3rings
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).
Moon 4merged
Merged with an adjacent moon: too close for both to hold a stable orbit.
Moon 5merged
Merged with an adjacent moon: too close for both to hold a stable orbit.
XenorrecedingVolcanic
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).
Tidal flexing melts its interior: an actively volcanic surface (Io-like).
+5 temperature: large moon stabilizes the axial tilt - steady seasons+10 geology: tidal flexing sustains geologic activity+5 magneticField: a large close moon may help stir the core dynamo (speculative)