Gentu System

Gentu System

The Sun, and planets (distances not to scale)
Age	4.931 billion years
Location	XXX
System mass	1.0011 Solar masses
Nearest star	TBA
Nearest known planetary system	TBA
Planetary system
Semi-major axis of outer known planet (Une'ara)	35.30 AU
Distance to Kuiper cliff	37 AU
Populations
Stars	1 (Sun)
Known planets	6: Gumaya, Gentu, Isthylon, Enera, Trenas, Une'ara
Known dwarf planets	TBA
Known natural satellites	2,000+
Known minor planets	TBA
Known comets	TBA
Identified rounded satellites	TBA
Orbit about Galactic Center
Invariable-to-galactic plane inclination	60.19° (ecliptic)
Distance to Galactic Center	27,000 ± 1,000 ly
Orbital speed	220 km/s; 136 mi/s
Orbital period	225–250 myr
Star-related properties
Spectral type	G2V
Frost line	≈5 AU

The Gentu System is the gravitationally bound system of the Sun and the objects that orbit it. The Gentu System formed 4.9 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in the planet Trenas. The three inner system planets, Gumaya, Gentu, and Isthylon are terrestrial planets, being composed primarily of rock and metal. The two giant planets of the outer system, Enera and Trenas are substantially larger and more massive than the terrestrials. They are gas giants, being composed mainly of hydrogen and helium. The planet Une'ara is the outest planet of the Gentu System which, like the planets of the inner system, is composed primarily of rock and metal.

Formation

TBA

Sun

TBA

Planet

Inner Gentu System

Gumaya

TBA

Gentu

Main article: Gentu

Gentu (1 AU (150 million km; 93 million mi) from the Sun) is the largest and densest of the inner planets, the only one known to have current geological activity, and the only place where life is known to naturally evolve. Its liquid hydrosphere is unique among the terrestrial planets, and it is the only planet where plate tectonics has been observed. Gentu's atmosphere is radically different from those of the other planets, having been altered by the presence of life to contain 21% free oxygen. The planetary magnetosphere shields the surface from solar and cosmic radiation, limiting atmospheric stripping and maintaining habitability. It has one natural satellite, Cynthia which has around 23 temporary inhabitants as of Enero of 1999.

Isthylon

TBA

Inner belt

TBA

Outer Gentu System

Enera

TBA

Trenas

TBA

Une'ara

TBA

Outer belt

TBA

Comets

TBA

Human discovery & exploration

TBA