settled-reach/wiki/star-systems/GJ-707/index.md

Dois Sóis

GJ 707 | binary-type | deep_frontier

The name means "two suns," which is the first thing anyone notices. The binary system produces two distinct light sources, two shadow directions at noon, a sky that most human settlements in the Reach have never experienced. Three hundred years of living under binary light has shaped everything here: architecture designed for shifting shadow angles, agriculture timed to the binary orbital period, a local calendar that tracks both stellar positions simultaneously. The settlers who came here were looking for a challenge nobody else would follow them into. They found one.

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System Profile

Star	binary · 32.1 ly
Bodies	0 habitable · 2 inhabited
Gates	2 aperture · through_route
Settlement	wave_3
Industries	metallic_ore, hospitality, financial_services, legal_services
Exports	financial_services
Imports	processed_food, electronics, consumer_goods, medical_goods, fusion_fuel, refined_metals
Population	—

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Supply Dependency

Dois Sóis is agriculturally self-sufficient — three centuries of cultivation adapted to binary stellar conditions have produced a fully functional food system. The adaptation challenge was substantial. The binary orbital period creates seasonal variations more complex than single-star systems, and the combined luminosity shifts as the stars' relative positions change. The community solved this over the first two or three generations through empirical adaptation rather than theoretical modeling, and the resulting agricultural practices are specific to Dois Sóis in ways that cannot be directly transferred to other systems.

The surplus the community exports is modest by the standards of older corridor systems. Binary conditions are productive but complex; the agricultural calendar is demanding and the expertise to manage it is not easily transferable. Manufacturers visiting from the inner corridor sometimes note that Dois Sóis' food exports are priced higher than comparable single-star frontier systems, which is a fair reflection of the labor and expertise their production requires.

Manufactured goods and medical equipment come in through Travessa and the inner south corridor. The community has developed some local fabrication capacity for common agricultural equipment, because the binary-specific requirements of their machinery are not well-served by standard inner corridor designs.

Faction Notes

No external faction maintains a formal presence at Dois Sóis. The community has sufficient institutional confidence from three centuries of successful adaptation that it manages its external relationships from a position of genuine self-assurance rather than either deference or defensiveness. Relations with the inner south corridor are warm but not dependent. The community regards itself as having solved something difficult that most of the Reach has never had to try.

The Lattice Commission has a clean compliance record for Dois Sóis. The community's size and stability make it an uninteresting regulatory target. Commission visits are infrequent and primarily administrative.

Silence Topic

What Dois Sóis does not discuss openly: the psychological and social effects of extended binary light exposure on the founding cohort and first generation, and how those effects were addressed.

The binary light conditions are not merely a practical challenge. They produce perceptual effects — disrupted circadian rhythms, visual adaptation pressures, the subtle cognitive effects of a sky that behaves differently from the single-star environments that human neurology evolved in. The founding cohort experienced these effects without preparation; the survey reports they relied on described the astronomical conditions accurately but did not model the human experience of living under them. The first generation grew up adapted; the founding cohort adapted after arrival, with variable success. The community's history includes a period in the first two or three decades when the adaptive challenges were more serious than the founding narrative acknowledges. The community has processed this into pride — they adapted, they succeeded, they stayed. The difficulty of the adaptation is honored in founding mythology but not examined in detail.

Narrative Hook

Dois Sóis' founding cohort adapted to binary stellar conditions that their survey reports failed to adequately describe; the community celebrates the adaptation and does not examine closely what the first decades actually required of the people who lived through them.

Celestial Bodies

Orbit	ID	Name	Type	Inhabited	Pop	Mass	Gravity	Year (d)	Day (h)	Atmo	Biome	Hydro	Economy	Settlement	Industrial
1	GJ707b	—	planet	no	—	terrestrial	0.36g	22	20.4	none	barren	—	—	—	—
2	GJ707c	Faial	planet	yes	18K	terrestrial	0.88g	160	27.4	standard	temperate	liquid_water	agricultural	dispersed	agricultural_export
3	GJ707-belt	—	asteroid_belt	no	—	—	—	—	—	—	—	—	—	—	—
4	GJ707d	—	planet	no	—	terrestrial	0.50g	480	25.8	thin	frozen	—	—	—	—
5	GJ707e	—	planet	no	—	terrestrial	0.38g	1300	29.2	trace	frozen	ice	—	—	—
6	GJ707f	—	planet	no	—	dwarf	0.11g	3600	22.4	none	frozen	ice	—	—	—
7	GJ707g	—	planet	no	—	dwarf	0.08g	9200	18.6	none	frozen	ice	—	—	—
8	GJ707-oort	—	oort_cloud	no	—	—	—	—	—	—	—	—	—	—	—

Stations & Facilities

ID	Name	Type	Orbits	Population	Economy	Governance	Docking	Gate	Districts
GJ707-oort-S1	Dois Sóis Horizon	horizon	GJ707-oort	340	transit	—	major	yes	1

Topology

• Hop Distance from Gateway: 9
• Adjacent Systems: GJ 482B (Travessa), GJ 868