Real exoplanet setting

The care of the blade

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The care of the blade
WARRIOR · Strength & connectionArtist’s imagined scene

A mantis-like warrior tends a training blade beside a shallow pool beneath an imagined parent-planet sky and two suns. Fictional warrior portrait: She draws the cloth along the training blade and feels a roughness near its edge. The mark is small enough to miss in the middle of a form. Here, with the tool supported on stone and the movement unhurried, it becomes clear. She turns the blade toward the light and studies what can be cleaned, what needs repair, and what should be left for a more skilled hand. Maintenance brings a different kind of honesty from performance. A movement can look accomplished while hiding a weakness in its equipment. The work beside the pool removes that uncertainty one detail at a time. She checks the grip, dries the joins and keeps the cloth away from the places where careless pressure would be dangerous. Attention remains necessary after the formal exercise is over. The tool carries traces of more than her own practice. Someone selected its material, shaped its balance and fitted the surface to hands like hers. Its usefulness is a continuing collaboration. Tending it becomes a way to acknowledge those absent makers and the companions who may rely on the same equipment after she has finished with it. The great parent world reflected in the pool breaks apart when her hand disturbs the water. She watches the image gather again. The scene invites a thought about care without pretending that the sky has delivered a rule: what appears whole from a distance may depend on many small conditions nearby. She can take responsibility for some of those conditions, even while the greater world remains beyond her control. Before leaving, she dries the blade and gathers the pieces she brought. Nothing is abandoned for the next visitor to discover. Stewardship gives her strength a longer horizon. The value of practice will continue in the condition of the tools, the safety of their next use, and the habits of care another warrior may learn by watching.

01 / Interpretation

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.

02 / Evidence

The scientific anchor

Kepler-413 b is a catalogued exoplanet orbiting Kepler-413. The saved NASA composite snapshot lists an orbital period of 66.262 days; uncertainties, limits and source provenance are preserved in the companion measurement table. Its catalog orbit is circumbinary. Viewpoint: imagined atmospheric moon. All warriors, beliefs, cultures and constructed environments are fictional. The depicted ground belongs to an invented moon; no exomoon detection or exposed solid surface on the parent giant is claimed.

Available measurements

Host: Kepler-413 · 2 catalog star(s) · Sub-Neptune / Neptune-size

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 radius4.347 [+0.099 / -0.099]Earth radiiKostov et al. 2014
Planet mass67 [+22 / -21]Earth massesKostov et al. 2014
Bulk density3.2 [+1 / -1]g/cm³Kostov et al. 2014
Orbital period66.262 [+0.024 / -0.021]daysKostov et al. 2014
Orbital semimajor axis0.3553 [+0.002 / -0.0018]AUKostov et al. 2014
Orbital eccentricity0.1181 [+0.0018 / -0.0017]Kostov et al. 2014
Orbital inclination89.929 [+0.024 / -0.016]degreesKostov et al. 2014
Irradiation2.9436 [+0.1909 / -0.1909]Earth fluxCalculated Value
Equilibrium temperature334.96K; not surface temperatureCalculated Value
Catalog stellar effective temperature4,700KKostov et al. 2014
Catalog stellar radius0.7761 [+0.0088 / -0.0096]Solar radiiKostov et al. 2014
Catalog stellar mass0.82 [+0.015 / -0.014]Solar massesKostov et al. 2014
Catalog stellar luminosity-0.42994 [+0.02689 / -0.02867]log10 Solar luminosityGaia DR2
Catalog stellar ageUnknownGyrSource not supplied
Catalog stellar metallicity-0.2dexKostov et al. 2014
System distance847.54 [+22.587 / -21.464]pcTICv8

What about life?

A substantial volatile envelope is plausible. A habitable ocean or surface cannot be inferred from radius; atmosphere and interior research required. No confirmed life; no planet-specific biosignature literature review in this release.

NASA system dossier ↗

Papers and references