Sol System

~4.57 billion years

Milky Way

Orion

Home System of Humanity

Humanity (native)

Yictan (non-native; extinct)

United Nations Federation

• United Space Command

New Soviet Union

Chinese Protectorate

Arabic Republic

Martian Republic

Titanian Republic

Ioian Republic

Europan Republic

USC FLEETCOM Sector HOME

USC CENTCOM Region HOME

Proxima Centauri (Approx. 4.24 light-years)

Stellar Data

Sol

G2V (Yellow main-sequence dwarf)

1.00 M☉

1.00 R☉

1.00 L☉

~5,778 K

• 0.95 – 1.37 AU (Conservative HZ)

• 0.84 – 1.67 AU (Extended HZ)

Population

• Mercury (0.39 AU)

• Venus (0.72 AU; terraformed, one artificial moon)

• Earth (1.00 AU; Birth and capital world of Humanity)

• Mars (1.52 AU; terraformed, two moons, independent republic)

• Jupiter (5.20 AU; gas giant)

• Saturn (9.58 AU; gas giant)

• Uranus (19.20 AU; ice giant)

• Neptune (30.07 AU; ice giant)

• Pluto (39.48 AU; disputed outer planet)

~19 confirmed (est. 250 in the Kuiper Belt, up to 10,000 scattered disk and detached objects)

~290 confirmed (excluding temporary captures)

1.1 million confirmed (main belt, Trojans, trans-Neptunians, centaurs)

~1.3–1.9 million bodies >1 km across ~1 billion ≥100 meters

~4,000 confirmed short-period comets; long-period population estimated at up to 1 trillion (Oort Cloud reservoir)

Planetary System

Frost Line ~5.0 AU

Semi-major Axis of Outermost Planet 39.48 AU (Pluto)

Heliopause Detected At ~120 AU

Hill Sphere ~1.0–1.2 light-years (~63,000–75,000 AU)

Orbit About Galactic Center

Invariable-to-Galactic Plane Inclination ~63°

Distance to Galactic Center ~26,660 light-years

Orbital Speed ~230 km/s (~828,000 km/h)

Orbital Period ~225–250 million years