Water World No life — not enough carbon Magnetic Field Moderate Activity
Why is this a Water World? Your planet has abundant oxygen (35.3%) and hydrogen (22.4%), creating extensive water coverage while in the habitable temperature zone. Water worlds have deep global oceans covering most or all of their surface. They form when planets have high water content and orbit in the habitable zone.
✓ Oxygen: 35.3% + Hydrogen: 22.4% (water-forming elements) ✓ Temperature: 275K (habitable range) ✓ Distance: 0.72 AU (habitable zone)
Habitability Score Extremely Harsh
Contributing Factors water 100
Abundant water — shielded under ice and rock, a subsurface refuge could outlast the blast geology 90
Active geology recycles nutrients and drives carbon cycle rotation 100
Optimal rotation period - balanced day/night cycle, moderate weather, and good heat distribution Organic Chemistry 20
Limited organic chemistry potential atmosphere 100
Nitrogen-oxygen atmosphere - breathable and protective temperature 100
Optimal temperature range for liquid water and life magnetic Field 100
Magnetic field provides radiation protection — but the remnant's shock fronts flood this orbit with cosmic rays Physical Properties Mass
1.30x Earth (7.76e+24 kg) Radius
1.09x Earth (6,953 km) This planet: 1.09× Earth radius Earth: 1× (baseline)
Surface Gravity
1.09x Earth (10.7 m/s²) Surface Temperature
275 K (2 °C / 36 °F) Rotation Period
24.0 hours/day This planet: 24 h/day Earth: 24 h/day Orbital Environment Star Type
SNR-type (Supernova Remnant) Distance from Star
0.72 AU (108 million km) Atmosphere Nitrogen and oxygen with water vapor, mild greenhouse effect
Surface Characteristics Vast oceans covering most of the surface, scattered islands or archipelagos Closest Real Exoplanet Orbiting Teegarden's Star Yours Teegarden's Star b Mass 1.30 × Earth 1.16 × Earth Radius 1.34 × Earth 1.05 × Earth Density (composition) 3.00 g/cm³ 5.52 g/cm³ Temperature 275.5 K 277.0 K Starlight received 0.96 × Earth 1.08 × Earth Star temperature — 3,034 K
Discovered 2019 via radial velocity · 12 light-years away Source: NASA Exoplanet Archive Browse all 5,568 real exoplanets Learn more about exoplanets Moons
Moon 1 rings 0.00079% - 6.2 radii
Inside the synchronous orbit: it spiraled inward and was torn apart at the Roche limit (Phobos's fate).