settled-reach/wiki/star-systems/GJ-451A/index.md

Groombridge 1830

GJ 451A | M-type | south_reach

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System Profile

Star	G8Vp · 29.7 ly
Gates	3 aperture · junction
Settlement	wave_4

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Supply Dependency

Faction Notes

Silence Topic

Narrative Hook

Calibration Note

Celestial Bodies

Orbit	ID	Name	Type	Inhabited	Pop	Mass	Gravity	Year (d)	Day (h)	Atmo	Biome	Hydro	Economy	Settlement	Industrial
1	GJ451Ab	—	planet	no	—	terrestrial	0.55g	72	21.5	none	barren	—	—	—	—
2	GJ451Ac	—	planet	no	—	terrestrial	0.82g	168	26.0	thick	hot_arid	—	—	—	—
3	GJ451Ad	—	planet	no	—	terrestrial	0.71g	340	24.8	thin	arid	—	—	—	—
4	GJ451A-belt	—	asteroid_belt	no	—	—	—	—	—	—	—	—	—	—	—
5	GJ451Ae	—	planet	no	—	terrestrial	0.63g	820	31.0	thin	cold_arid	—	—	—	—
6	GJ451Af	—	gas_giant	no	—	—	—	2800	11.6	gas_giant	—	—	—	—	—
↳ 6.1	GJ451Af-m1	—	moon	no	—	dwarf	0.14g	9	220.8	trace	frozen	—	—	—	—
↳ 6.2	GJ451Af-m2	—	moon	no	—	dwarf	0.08g	20	470.4	—	barren	—	—	—	—
7	GJ451Ag	—	planet	no	—	terrestrial	0.49g	6400	41.0	trace	frozen	—	—	—	—
8	GJ451Ah	—	planet	no	—	terrestrial	0.37g	11000	52.0	trace	frozen	—	—	—	—
9	GJ451Ai	—	planet	no	—	terrestrial	0.28g	20000	65.0	trace	frozen	—	—	—	—
10	GJ451Aj	—	planet	no	—	terrestrial	0.20g	36000	80.0	trace	frozen	—	—	—	—
11	GJ451A-oort	—	oort_cloud	no	—	—	—	—	—	—	—	—	—	—	—

Stations & Facilities

ID	Name	Type	Orbits	Population	Economy	Governance	Docking	Gate	Districts
GJ451A-oort-S1	Groombridge 1830 Horizon	horizon	GJ451A-oort	620	transit	—	major	yes	1

Topology

• Hop Distance from Gateway: 6
• Adjacent Systems: GJ 644C, GJ 688, GJ 902