Astronomical evidence
TRAPPIST-1 e is one of seven approximately Earth-sized planets around an ultracool red dwarf. The saved catalog reports an orbital period of 6.101013 ± 0.000035 days and radius of 0.920 Earth radii, with +0.013/−0.012 uncertainty. [1] Transit and timing measurements constrain the system without resolving its landscape. NASA’s Webb overview describes atmospheric interpretation as ongoing and notes contamination from stellar activity. [2] Neither rainforests nor a breathable atmosphere follow from location in the habitable zone.
The illustrated viewpoint
Rajiv practices a barehanded martial-arts stance on a wet stone courtyard amid lush vegetation, heavy rain, misty cliffs and waterfalls. An overgrown physical relief depicts seven worlds and imagined animals. A small warm host star shines through storm clouds. The rainforest, rain, liquid water, waterfalls, terrain, atmosphere, courtyard, relief and human presence are invented. Green plant colors are an artistic choice, not an inferred biology. The low star and cloud lighting are illustrative; no climate model, fixed terminator, observation date or human habitability is claimed.
The rainforest, rain, liquid water, waterfalls, terrain, atmosphere, courtyard, relief and human presence are invented. Green plant colors are an artistic choice, not an inferred biology. The low star and cloud lighting are illustrative; no climate model, fixed terminator, observation date or human habitability is claimed. The person is a generated portrayal based on the user-supplied portrait. Bruce Lee was a movement reference only, not the depicted identity.
Catalog measurements & sources
Host: TRAPPIST-1. Snapshot: 25 September 2026. Errors, limits and source provenance are retained. Calculated values and model estimates are not direct measurements. Unknown is not zero; equilibrium temperature is not surface temperature.
| Quantity / unit | Value / reported errors | Source |
|---|---|---|
| Radius · Earth radii | 0.92 (+0.013 / -0.012) | Agol et al. 2021 |
| Mass · Earth masses | 0.692 (+0.022 / -0.022) | Agol et al. 2021 |
| Density · g/cm³ | 4.9016 (+0.165408 / -0.181949) | Agol et al. 2021 |
| Orbital period · days | 6.10101 (+3.5e-05 / -3.5e-05) | Agol et al. 2021 |
| Orbital semimajor axis · AU | 0.02925 (+0.0025 / -0.0025) | Agol et al. 2021 |
| Eccentricity | 0.0051 (+0.00058 / -0.00058) | Grimm et al. 2018 |
| Inclination · degrees | 89.793 (+0.048 / -0.048) | Agol et al. 2021 |
| Irradiation · Earth flux | 0.646 (+0.025 / -0.025) | Agol et al. 2021 |
| Equilibrium temperature · K | 249.7 (+2.4 / -2.4) | Ducrot et al. 2020 |
| Stellar effective temperature · K | 2566 (+26 / -26) | Agol et al. 2021 |
| Stellar radius · Solar | 0.1192 (+0.0013 / -0.0013) | Agol et al. 2021 |
| Stellar mass · Solar | 0.0898 (+0.0023 / -0.0023) | Agol et al. 2021 |
| Stellar luminosity · log Solar | -3.25727 (+0.01467 / -0.01518) | Agol et al. 2021 |
| Stellar age · Gyr | 7.6 (+2.2 / -2.2) | Piaulet-Ghorayeb et al. 2025 |
| Stellar metallicity · dex | 0.052 (+0.073 / -0.073) | Piaulet-Ghorayeb et al. 2025 |
| Distance · pc | 12.4299 (+0.0187066 / -0.0187066) | Gaia DR2 |