55 Cnc e
A real world. 3 imagined possibilities.
Watch this world orbit ↗Catalog central values; reported uncertainties, limits and sources are in the science record below.
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
Worlds at war01 imagined view
WARRIOR · Stillness & discipline01 imagined view
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.
McArthur et al. 2004 · Bourrier et al. 2018 · ExoFOP · Demory et al. 2011 · Knapp et al. 2020 · Marcy et al. 2002 · TICv8
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 | 1.875 [+0.029 / -0.029] | Earth radii | Bourrier et al. 2018 |
| Planet mass | 7.99 [+0.32 / -0.33] | Earth masses | Bourrier et al. 2018 |
| Bulk density | 6.66 [+0.43 / -0.4] | g/cm³ | Bourrier et al. 2018 |
| Orbital period | 0.73655 [+1.3e-06 / -1.4e-06] | days | Bourrier et al. 2018 |
| Orbital semimajor axis | 0.01544 [+5e-05 / -5e-05] | AU | Bourrier et al. 2018 |
| Orbital eccentricity | 0.05 [+0.03 / -0.03] | Bourrier et al. 2018 | |
| Orbital inclination | 83.59 [+0.47 / -0.44] | degrees | Bourrier et al. 2018 |
| Irradiation | 2,657.8 | Earth flux | ExoFOP |
| Equilibrium temperature | 1,958 [+15 / -15] | K; not surface temperature | Demory et al. 2011 |
| Catalog stellar effective temperature | 5,172 [+18 / -18] | K | Bourrier et al. 2018 |
| Catalog stellar radius | 0.943 [+0.01 / -0.01] | Solar radii | Bourrier et al. 2018 |
| Catalog stellar mass | 0.905 [+0.015 / -0.015] | Solar masses | Bourrier et al. 2018 |
| Catalog stellar luminosity | -0.19695 [+0.0125 / -0.01039] | log10 Solar luminosity | Knapp et al. 2020 |
| Catalog stellar age | 5.5 [+2.5 / -2.5] | Gyr | Marcy et al. 2002 |
| Catalog stellar metallicity | 0.35 [+0.1 / -0.1] | dex | Bourrier et al. 2018 |
| System distance | 12.585 [+0.0124 / -0.0123] | pc | TICv8 |