Life possible Low Activity
Why is this a Rocky Terrestrial? Your planet is dominated by silicate (13.5%) and iron (11.2%) 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: 13.5% + Iron: 11.2% + Magnesium: 11.2% ✓ Mass: 0.4x Earth (terrestrial range)
Reading your planet’s atmosphere Dominant elements: O, C, H, Si, Fe, Mg This is what a telescope would measure while your planet crosses in front of its star: starlight passes through the atmosphere and spreads into a rainbow band. Each dark line marks a wavelength the atmosphere absorbed. Every element absorbs its own signature wavelengths — hydrogen always darkens the same two spots, calcium another pair, and so on. Astronomers match the lines in a real spectrum against a library of these signatures to say what an atmosphere is made of, light-years away, without ever visiting. A deeper line generally means more of that element is present. For a real planet, distance is usually measured by parallax: as Earth orbits the Sun, a nearby star appears to shift very slightly against the distant background stars, and the size of that shift gives its distance directly — the same geometry surveyors use, at an interstellar scale. Close
Habitability Score Habitable
Contributing Factors water 61
Good water content (low gravity lets water escape to space) geology 60
Some geological activity provides slow nutrient cycling rotation 100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution Organic Chemistry 80
Core organic elements (CHNO) present atmosphere 70
Nitrogen atmosphere provides protection but not breathable temperature 70
Challenging but potentially habitable temperature magnetic Field 30
No magnetic field - vulnerable to solar radiation Physical Properties Mass
0.40x Earth (2.39e+24 kg) Radius
0.74x Earth (4,694 km) This planet: 0.74× Earth radius Earth: 1× (baseline)
Surface Gravity
0.74x Earth (7.2 m/s²) Surface Temperature
324 K (51 °C / 123 °F) Rotation Period
25.0 hours/day (slower than Earth) This planet: 25 h/day Earth: 24 h/day Orbital Environment Distance from Star
0.78 AU (117 million km) Atmosphere Thin CO₂ and nitrogen atmosphere
Surface Characteristics Rocky surface with impact craters, possible volcanic features
Habitability ✓ 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.