Gliese 581 (Necros Era)

Gliese 581
First found in 2010 the system and it red draft was the first system outside the sol system to hold planets suitable for life. The entire system is composed of 6 planets and of star Called Gliese 581 A. The system is over 4.3 billions years old and it used by the UNSC for multiple purpose from military reserch to exo-biological reserch. Spared by the Covenant during the war it remaned a vital system for the UNSC war effort. The entire system hold a sizable population of 909,100,000 human called Gliesians.

Gliese 581 B
The second closest to it star Gliese 581 B it is 16 time bigger than the Earth. She evoluate around it star in 5.4 days wich mean it is unsuitable for life. Indeed a planet more than 9 time begger than earth can't be teraformed or would be extremly unstable to maintain life.

Gliese 581 C
Holding position in the habitable zone of the sar system. It is twice bigger than earth and evolute around it star in 13 days. It was one the first planet to be colonised buy the UEG. During the Human Covenant war it was spared by the Covenant allowing the colonie to grow up while many other has to fight for survive. The planet hold 850 millions inhabitants called Gliesians. The planet is a heavy industrial world and also the house of many buisness headquarter.

Gliese 581 D
Mostly like is sister planet it is also situated in the habitable zone. The planet is used has a resech station as well as refuelling and repair station for the UNSC ships has well of civilian ships. It his 7 time the size of earth and rotate around the star in 67 days. Finally it hold a population of 50 millions humans.

Gliese 581 E
The planet is the smallest exoplanet of the system and is less than twice bigger than earth. It is used by the unsc has a farm planet used to store and produce enormous amount of food. being the closest of is sun the planet is able to produce more than 6 times the amount of food than earth in a single year. It old a small population of 5,6 millions humans

Gliese 581 F
This planet is the farest, only scientific and military personnal are alowed. It is used as weapon reserf facility and a remote scanning post for the entire system. The planet is'nt teraformed but insted use a serie of presurised electro-magnetic dome around certain key area of the planet to hold the atmosphere and the living system to regenerate the oxygen needed. It hold a population of 500,000 scientifics and military personnal

Gliese 581 G
Finally, Gliese 581 G is 4,5 time the mass of earth and 1,2 time it diameter. It atmosphere is extremly dense and allowed the formation of forest of epic proportion covering more than 60% of continants. The planet is aloso extremly rich in titanium wich mean it is used as a minning post. Interesting enough, the planet also hold a population of indigenous creatures wich have been know to the UNSC since the beggining of the colonization in early 2300. The planet is also used as a exo-biological reserv and reserch center. It hold a population of 3 millions humans.