The pearlescent frontier

An artistic scene associated with TOI-1338 b. The scientific record below anchors the setting; it does not establish the depicted environment.
The imagined scene
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.
The scientific anchor
The real planet orbits two stars; its catalog orbital period is 95.4001 days and radius is 7.661 Earth radii. It is gas-rich: this scene uses an atmospheric platform, not an established habitable planetary surface. All pictured moons and humanoids are fictional.
Kostov et al. 2020 · Wang & Liu 2024 · ExoFOP · Gaia DR2 · TICv8
Available measurements
Host: TOI-1338 A · 2 catalog star(s) · Giant-size planet
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.
| Quantity | Value & uncertainty | Unit | Paper / source |
|---|---|---|---|
| Planet radius | 7.661 [+0.053 / -0.053] | Earth radii | Wang & Liu 2024 |
| Planet mass | 11.3 [+2.1 / -2.1] | Earth masses | Wang & Liu 2024 |
| Bulk density | 0.56 [+0.34 / -0.33] | g/cm³ | Kostov et al. 2020 |
| Orbital period | 95.4 [+0.0062 / -0.0056] | days | Wang & Liu 2024 |
| Orbital semimajor axis | 0.4607 [+0.0084 / -0.0088] | AU | Kostov et al. 2020 |
| Orbital eccentricity | 0.0331 [+0.0022 / -0.0021] | Wang & Liu 2024 | |
| Orbital inclination | 90.494 [+0.013 / -0.014] | degrees | Wang & Liu 2024 |
| Irradiation | 0.9938 | Earth flux | ExoFOP |
| Equilibrium temperature | 254.65 | K; not surface temperature | ExoFOP |
| Catalog stellar effective temperature | 5,723.2 [+57 / -57] | K | ExoFOP |
| Catalog stellar radius | 1.313 [+0.0038 / -0.0038] | Solar radii | Wang & Liu 2024 |
| Catalog stellar mass | 1.0936 [+0.0072 / -0.0072] | Solar masses | Wang & Liu 2024 |
| Catalog stellar luminosity | 0.32898 [+0.00639 / -0.00648] | log10 Solar luminosity | Gaia DR2 |
| Catalog stellar age | 4.4 [+0.2 / -0.2] | Gyr | Kostov et al. 2020 |
| Catalog stellar metallicity | 0.01 [+0.05 / -0.05] | dex | Kostov et al. 2020 |
| System distance | 399.02 [+3.162 / -3.113] | pc | TICv8 |
What about life?
Likely a deep gaseous envelope, without a solid exterior surface. Atmospheric or moon life is speculative; this is not proof that all life is impossible. No confirmed life; no planet-specific biosignature literature review in this release.
Papers and references
Kostov et al. 2020 · Wang & Liu 2024 · ExoFOP · Gaia DR2 · TICv8