One star, many hungers
The final panorama returns to one real astronomical address: Kepler-1649 c, a transiting, approximately Earth-sized world around Kepler-1649. Our saved measurements describe its radius, orbit and stellar environment. They do not show a forest, a shoreline or any organism. Every living form in this book belongs to the same authored hypothesis [1, 2]. Across the canopy, different hungers meet. Fans gather light. Membrane sailors carry reproductive material. Blister nurseries shelter partners. Plate-creepers graze, clean and transport fragments, while decomposers make use of what dies. None of these relationships needs to be perfect or universally cooperative for a community to persist in the story. The distant rain and lightning make the atmosphere part of that community’s setting. Water moves through clouds, crowns, rivers and sheltered pores. Clearer sky admits direct light over the sea while the storm leaves other parts of the forest in diffuse shadow. One star can produce a landscape of very different local opportunities. The purpose of this garden is to connect scale to possibility. Astronomy constrains where the fiction begins; biology explores what might follow under explicitly chosen conditions. The images are neither a prediction of life nor evidence for it. They are fifteen ways of asking what a world could do with light. Viewpoint: High forest shelf overlooking the sea.
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
Kepler-1649 c is a transiting planet around Kepler-1649. Its saved radius is 1.06 (+0.15 / −0.10) Earth radii and its orbital period is 19.53527 ± 0.00010 days [Vanderburg et al. 2020]. This scene explores a biosphere as an astronomical hypothesis. Primary producers, reproductive partners, sheltered symbionts, grazers and recyclers share one fictional stellar-powered ecosystem. All weather, vegetation and other life are fictional.
Vanderburg et al. 2020 — Kepler-1649 c discovery and measured parameters · NASA Exoplanet Archive — Kepler-1649 c · Kiang et al. 2007 — photosynthetic spectra as a general research context · Vanderburg et al. 2020 · Q1-Q17 DR25 KOI Table
Available measurements
Host: Kepler-1649 · 1 catalog star(s) · Rocky-size candidate
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 | 1.06 [+0.15 / -0.1] | Earth radii | Vanderburg et al. 2020 |
| Planet mass | 1.2 | Earth masses | Calculated Value |
| Bulk density | 5.54 | g/cm³ | Calculated Value |
| Orbital period | 19.535 [+0.0001 / -0.0001] | days | Vanderburg et al. 2020 |
| Orbital semimajor axis | 0.0649 | AU | Q1-Q17 DR25 KOI Table |
| Orbital eccentricity | 0 | Q1-Q17 DR25 KOI Table | |
| Orbital inclination | 89.339 [+0.056 / -0.056] | degrees | Vanderburg et al. 2020 |
| Irradiation | 0.75 [+0.032 / -0.302] | Earth flux | Vanderburg et al. 2020 |
| Equilibrium temperature | 234 [+20 / -20] | K; not surface temperature | Vanderburg et al. 2020 |
| Catalog stellar effective temperature | 3,240 [+61 / -61] | K | Vanderburg et al. 2020 |
| Catalog stellar radius | 0.2317 [+0.0049 / -0.0049] | Solar radii | Vanderburg et al. 2020 |
| Catalog stellar mass | 0.1977 [+0.0051 / -0.0051] | Solar masses | Vanderburg et al. 2020 |
| Catalog stellar luminosity | -2.2873 [+0.01652 / -0.01717] | log10 Solar luminosity | Vanderburg et al. 2020 |
| Catalog stellar age | Unknown | Gyr | Source not supplied |
| Catalog stellar metallicity | -0.15 [+0.11 / -0.11] | dex | Vanderburg et al. 2020 |
| System distance | 92.191 [+0.5489 / -0.5425] | pc | TICv8 |
What about life?
Passes a deliberately broad 0.25–1.75 Earth-flux triage window. This is not a calculated habitable zone or evidence of water or life. Atmosphere, surface pressure, water inventory, stellar activity and orbital history remain unassessed. No confirmed life; no planet-specific biosignature literature review in this release.
Papers and references
Vanderburg et al. 2020 — Kepler-1649 c discovery and measured parameters · NASA Exoplanet Archive — Kepler-1649 c · Kiang et al. 2007 — photosynthetic spectra as a general research context · Vanderburg et al. 2020 · Q1-Q17 DR25 KOI Table · TICv8