Files
settled-reach/wiki/star-systems/GJ-603/index.md
T
jpmschweitzerandClaude Opus 4.6 db241b88bd refactor(schema): rename biome_summary to planet_class (D-188)
"Biome" describes per-zone vegetation classification (Whittaker table).
"Planet class" describes overall planetary character. The conflation
caused the planet generator to misclassify ~270 bodies as barren.

Scope: systems.db column, schema SQL, Rust atlas code, wiki table
headers (Biome → Class), atlas proposal JSONs, all docs/decisions,
tooling scripts. Also normalizes atmosphere vocabulary (breathable →
standard) and expands planet class mapping to all 26 wiki values.
Unknown classes default to temperate for modder safety.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-06 17:10:35 +02:00

5.4 KiB

Mossbank

GJ 603 | G-type | north_reach


System Profile

Star G5V · 36.7 ly
Bodies 0 habitable · 2 inhabited
Gates 1 aperture · dead_end
Settlement wave_5
Industries fusion_fuel, metallic_ore, agricultural_produce, processed_food, hospitality, financial_services, legal_services
Exports processed_food, financial_services
Imports electronics, consumer_goods, medical_goods, refined_metals, heavy_equipment, chemicals
Population —

Mossbank is the terminus — reached through an unsettled binary system, one gate, one way out. The name is Scottish, carried across decades and light-years by settlers whose families came from that tradition, and it fits a world where low-growing vegetation carpets every damp surface and the word "bank" captures both the sloped terrain and the quiet feeling of something accumulating slowly.

The star is the surprise. A G-type primary — bright, warm, yellow-white — sits at the end of this dim corridor like a door left open in a dark hallway. The habitable world sits inside a broad temperate zone, and the quality of the light is noticeably different from the red-shifted corridors of the Cairn pocket chain. Settlers who arrived forty to a hundred years ago found a world that required less artificial lighting, less vitamin supplementation, and less agricultural engineering than the M-dwarf worlds behind them. They consider this luck. Some of them consider it a reason to stay permanently.

As a dead_end with one aperture, Mossbank is off the movement of goods and people that flows through through_routes. What arrives here was sent here. What leaves here was meant to leave. This gives the community an unusual clarity about who belongs and why. Strangers are memorable.

Supply Dependency

Mossbank is not yet self-sufficient in manufactured components and medical fabrication. Supply runs from Athabasca (GJ 1289) route through the unsettled GJ 3988 binary; delays are expected and built into planning cycles. The community has developed strong local repair and maintenance culture as a result — you fix what you have because the replacement is three weeks out.

Faction Notes

Settlement council governance, no external faction presence. Scottish heritage community traditions run deep enough that informal dispute resolution structures predate the formal charter. The Commission knows this system exists; it does not have a representative stationed here.

Silence Topic

The decision to route through the unsettled binary to reach Mossbank rather than finding a more direct approach. The survey data suggests alternative corridors existed and were not pursued. No one local knows why, and asking the question is considered rude — implying the founders had a reason to hide.

Narrative Hook

A family arrived eighteen months ago claiming to be the descendants of the original survey team, carrying documents that would establish a prior land claim predating the current settlement charter. The council has been quietly ignoring them. The documents may be genuine.

Calibration Note

Wave_5 dead_end at hop 7 routed through an unsettled system is the most isolated settled configuration in the north_reach corridor. The G-type star justifies settlement despite the access difficulty.

Celestial Bodies

Orbit ID Name Type Inhabited Pop Mass Gravity Year (d) Day (h) Atmo Class Hydro Economy Settlement Industrial
1 GJ603b — planet no — terrestrial 0.50g 42 17.8 none barren — — — —
2 GJ603c Torridon planet yes 4K terrestrial 0.92g 350 26.6 standard temperate liquid_water agricultural dispersed —
3 GJ603d — planet no — terrestrial 0.68g 700 23.4 thin cold_arid — — — —
4 GJ603-belt — asteroid_belt no — — — — — — — — — — —
5 GJ603e — gas_giant no — — — 2200 11.2 gas_giant — — — — —
↳ 5.1 GJ603e-m1 — moon no — dwarf 0.12g 6 148.8 none frozen — — — —
6 GJ603f — planet no — terrestrial 0.46g 5400 34.4 trace frozen ice — — —
7 GJ603g — planet no — terrestrial 0.36g 12000 43.6 trace frozen ice — — —
8 GJ603h — planet no — terrestrial 0.28g 26000 52.2 none frozen ice — — —
9 GJ603i — planet no — dwarf 0.13g 56000 30.4 none frozen ice — — —
10 GJ603j — planet no — dwarf 0.09g 114000 25.2 none frozen ice — — —
11 GJ603-oort — oort_cloud no — — — — — — — — — — —

Stations & Facilities

ID Name Type Orbits Population Economy Governance Docking Gate Districts
GJ603-oort-S1 Mossbank Horizon horizon GJ603-oort 65 transit — major yes 1

Topology

  • Hop Distance from Gateway: 7
  • Adjacent Systems: GJ 3988