Rocky Terrestrial
Magnetic FieldHigh Activity
Why is this a Rocky Terrestrial?Your planet is dominated by silicate (6.3%) and iron (18.8%) content, forming a rocky terrestrial body.Rocky terrestrial planets are primarily composed of silicate rocks and metals. They're the most common type of small planet in the universe.
✓ Silicon: 6.3% + Iron: 18.8% + Magnesium: 12.5%✓ Mass: 0.5x Earth (terrestrial range)
Habitability ScoreMarginal
Contributing Factorswater20
Very dry - minimal watergeology90
Active geology recycles nutrients and drives carbon cyclerotation100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distributionOrganic Chemistry20
Limited organic chemistry potentialatmosphere70
Nitrogen atmosphere provides protection but not breathabletemperature100
Optimal temperature range for liquid water and lifemagnetic Field100
Magnetic field provides radiation protection Physical Properties
Mass
0.50x Earth (2.99e+24 kg)Radius
0.79x Earth (5,057 km)Surface Gravity
0.79x Earth (7.8 m/s²)Surface Temperature
309 K (36 °C / 96 °F)Rotation Period
24.0 hours/dayOrbital Environment
Star Type
G-type (Yellow (Sun-like))Distance from Star
0.81 AU (121 million km)Atmosphere
Thin nitrogen atmosphere
Surface Characteristics
Rocky surface with impact craters, possible volcanic featuresClosest Real Exoplanet
Orbiting Kepler-138 | Yours | Kepler-138 e |
|---|
| Mass | 0.50 × Earth | 0.43 × Earth |
| Radius | 0.84 × Earth | 0.80 × Earth |
| Density (composition) | 4.65 g/cm³ | 4.68 g/cm³ |
| Temperature | 308.9 K | 292.0 K |
| Starlight received | 1.52 × Earth | 1.73 × Earth |
| Star temperature | 5,600 K | 3,841 K |
Discovered 2022 via transit timing variations · 218 light-years awaySource: NASA Exoplanet Archive Browse all 5,568 real exoplanetsLearn more about exoplanetsMoons
Moon 1receding0.16% - 46.6 radii
Outside the synchronous orbit: slowly receding, like Luna (~cm per year).