Imagined view associated with TRAPPIST-1 f
Field guide / Rocky-size candidate

TRAPPIST-1 f

A real world. 4 imagined possibilities.

Watch this world orbit ↗
Artist’s imagined environment
Host starTRAPPIST-1
One orbit9.21 days
Planet radius1.04 Earth radii
Distance from us40.5 light-years

Catalog central values; reported uncertainties, limits and sources are in the science record below.

A place in the universe

Under these skies,
we imagined…

Explore this world through landscapes, life and stories. Each scene is connected to its intended planet and includes the science, the viewpoint and the details we invented.

Planetary landscapes01 imagined view

TRAPPIST-1 fTRAPPIST-1 fTRAPPIST-1 fPlanetary landscapes

Imagined alien life02 imagined views

TRAPPIST-1 f — dayTRAPPIST-1 fTRAPPIST-1 f — dayImagined alien lifeTRAPPIST-1 f — nightTRAPPIST-1 fTRAPPIST-1 f — nightImagined alien life

WARRIOR · Strength & connection01 imagined view

When the wind risesTRAPPIST-1 fWhen the wind risesWARRIOR · Strength & connection
The evidence record

The real world, in the literature

The host system is real. All alien organisms, robots, societies and social histories are fictional. Moons, rings, terrain and weather are artistic assumptions unless specifically supported by a cited source. These images are not calibrated simulations of the sky.

NASA composite catalog values may combine different papers. Errors and upper/lower limits are retained. “Calculated Value” means derived or estimated. Msini is a minimum mass. Missing values are unknown. A multiple-star system’s single stellar row does not describe every component. Equilibrium temperature is not a measured surface temperature.

QuantityValue & uncertaintyUnitPaper / source
Planet radius1.045 [+0.013 / -0.012]Earth radiiAgol et al. 2021
Planet mass1.039 [+0.031 / -0.031]Earth massesAgol et al. 2021
Bulk density5.0229 [+0.13784 / -0.1599]g/cm³Agol et al. 2021
Orbital period9.2075 [+3.2e-05 / -3.2e-05]daysAgol et al. 2021
Orbital semimajor axis0.03849 [+0.00033 / -0.00033]AUAgol et al. 2021
Orbital eccentricity0.01007 [+0.00068 / -0.00068]Grimm et al. 2018
Orbital inclination89.74 [+0.019 / -0.019]degreesAgol et al. 2021
Irradiation0.373 [+0.015 / -0.014]Earth fluxAgol et al. 2021
Equilibrium temperature217.7 [+2.1 / -2.1]K; not surface temperatureDucrot et al. 2020
Catalog stellar effective temperature2,566 [+26 / -26]KAgol et al. 2021
Catalog stellar radius0.1192 [+0.0013 / -0.0013]Solar radiiAgol et al. 2021
Catalog stellar mass0.0898 [+0.0023 / -0.0023]Solar massesAgol et al. 2021
Catalog stellar luminosity-3.2573 [+0.01467 / -0.01518]log10 Solar luminosityAgol et al. 2021
Catalog stellar age7.6 [+2.2 / -2.2]GyrPiaulet-Ghorayeb et al. 2025
Catalog stellar metallicity0.052 [+0.073 / -0.073]dexPiaulet-Ghorayeb et al. 2025
System distance12.43 [+0.018707 / -0.018707]pcGaia DR2

NASA system dossier ↗