Altair System

Age 1.2 billion years

Galaxy Milky Way

Galactic Arm Orion

Inner Colony System

Yictan (non-native; existent)

Humanity (non-native)

October 17, 2127; 597 years ago

United Nations Federation

FLEETCOM Sector Four

CENTCOM Region Four

Distance from Sol 16.73 light-years

Nearest star Armstrong; Ross 248 (Approx. ~3.16 light-years)

Stellar and Galactic Data

Star Altair (Alpha Aquilae)

Spectral Type A7V (main-sequence, white star)

Stellar Mass 1.79 M☉

Stellar Radius 1.63 R☉

Stellar Luminosity ~10.6 L☉

Effective Temperature ~7,850 K

Population

• Altair I (0.459–0.512 AUs)

• Altair II (0.879 AU)

• Altair III (New Eden; 1.87 AU – inner edge of habitable zone)

• Altair IV (2.301 AU)

• Altair V (5 AU)

• Altair VI (8.489 AU)

Known dwarf planets 12 (estimated, outer belt analog)

Known natural satellites 127 (across all planets; mostly gas giant moons)

Known minor planets ~4,000 (belt and scattered disk equivalent)

Known Asteroids ~880,000 (main and outer belts combined)

Known comets ~3,100 (including short- and long-period comets)

Planetary system

Frost line ~4.3 AU

Semi-major axis of the outermost planet 8.489 AU

Heliopause detected at ~125 AU

Hill sphere ~0.45 parsecs (~1.47 light-years, ~93,000 AU)

Orbit about Galactic Center

Invariable-to-galactic plane inclination ~63.2°, to the ecliptic

Galactic Center ~25,560ly

Orbital speed ~222 km/s (~799,200 km/h)

Orbital period ~225 million years