Eridanus II

Eridanus II
Astrographical
System:	Eridanus system
Orbiting:	Eridanus
Orbital position:	Second planet
Moon(s):	One; Ehilend
Physical
Gravity:	1.01 G
Atmosphere:	1 (N2, O2)
Surface temperature:	-18°C to 38°C (0.4°F to 100.4°F)
Societal
Species:	Human (Non-native)
Population:	510,000 (Post-war)
Colonized:	2440
Government:	UEG Eridanus Government; ;

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Eridanus II is a human Outer Colony planet in the Eridanus system. The planet was mostly rural, devoid of pollution or crowding, and had climate-controlled weather.^[6] It was famous for its beautiful landscapes and higher learning centers.^[2] It was the location of the cities of Luxor and Elysium City, where John-117 grew up until he was abducted and sent into the SPARTAN-II program in 2517. Emile-A239 was from Luxor, born there in 2523.^[7]

Overview

Topography and ecology

Eridanus II boasted vast territories free of pollution.^[5]

Locations

Known residents

History

Rise of humanity

Eridanus II was settled in 2440.^[4]^[5]

Insurrection

The secessionist rebels in the system staged a localized rebellion against the UNSC in 2494. The UNSC struck back two years later in Operation: CHARLEMAGNE and forced the rebels out at the cost of four destroyers.^[8] A large number of rebels survived, however, and under the command of the UNSC turncoat Colonel Robert Watts, overthrew the civilian government of the system in 2513. Watts was presumed killed in the UNSC's counterattack, Operation: TREBUCHET, but in fact he escaped to Eridanus Secundus in the system's asteroid belt with the rest of the rebels.

In 2517, Dr. Catherine Halsey and Lieutenant Jacob Keyes visited the planet during the former's mission to observe the SPARTAN-II candidates. Halsey met John-117 at a playground in Elysium City's Education Facility 119, where she determined his admission into the program with the flip of an antique coin.^[9]

As part of Operation: TREBUCHET in 2524, Colonial Military Authority Marines attempted to raid an Insurrectionist base on Teribus Island. Sympathizers in the unit tipped the Insurrectionists off, and by the time the dropship arrived it had been abandoned. Later, a nightclub in Elysium City was targeted by Insurrectionist bombers because it was a favorite CMA area for off-duty personnel, killing dozens of civilians and a CMA pilot, Allison Stark and putting a CMA Marine, Eric Santiago, into a coma. Gage Yevgenny and Felicia Sanderson were injured, but survived the attack.^[10] Around this time, refugees from Eridanus II ended up in Pirth City on Arcadia and New Jerusalem.^[11]

It remained a place of much hostility against the UNSC, and many pirates and rebels continued to operate across the system, with the asteroid belt as their main base of operations. John-117 returned to the system in 2525 with the other Spartan-IIs aboard the destroyer UNSC Pioneer for their first mission to capture the rebel leader, Colonel Robert Watts. The Spartan team boarded the cargo freighter Laden and traveled to the rebel asteroid base Eridanus Secundus, where they successfully captured the Colonel and escaped.

At an unknown time, a skirmish between UNSC and Insurrectionist forces during Operation: ROCK HOUSE took place.^[12]

Human-Covenant war

Main article: Human-Covenant war

At some point during the Human-Covenant war, Operation: BLUE MOON took place on the planet.^[13] Eridanus II was glassed by the Covenant in 2530 and the UNSC abandoned the planet.^[14]

Post-war

The planet was left largely intact, enabling rehab pioneers and original inhabitants to return hoping to rebuild.^[5] By 2557, the UNSC had reclaimed and resettled the planet, as Nova Austin Station on the planet Cascade offered flights to Eridanus II that year.^[15]

Government and society

The governing of Eridanus II was under the auspices of the Eridanus Government, an ally of the Unified Earth Government (UEG).^[8] Eridanus II has some of the best educational facilities in the Outer Colonies.^[5] Boxing was outlawed on the planet.^[16]

Culture

Children on Eridanus II, at some schools, can play gravball.^[9]

Non-canon and dubious canon appearances

Silver Timeline

This article contains information about the Silver Timeline, and is not a part of the established Halo canon.

Main article: Eridanus II/Silver

Originally uninhabited, Eridanus II was settled as a part of the Reach for Life project. The Reach for Life installation on Eridanus II was one of only six to survive its pilot stage, becoming a fertile forest built into an otherwise hostile planet. It was where John-117 was born and lived for the first several years of his life, at one point discovering a Forerunner keystone in a cavern near his home. His parents were the leaders of the Eridanus II colony.^[17]^[18]