Eridanus Secundus (Earth-5875)

Eridanus Secundus is an asteroid in the Eridanus system. It was the location of a massive United Liberation Front base, led by Colonel Robert Watts.

History
After the pivotal Operation TREBUCHET in 2513, the United Liberation Front leader Colonel Robert Watts was believed to be dead by the UNSC. In truth, Watts had escaped to Eridanus Secundus with hundreds of loyalists, and the asteroid soon became the site of major activity, including piracy.

In September 14th, 2525, after the base was uncovered by the Office of Naval Intelligence, they sent SPARTAN-II Blue Team, consisting of John-117, Kelly-087, Fred-104, Linda-058 and Samuel-034, was sent to Eridanus Secundus in order to capture Watts and kill his soldiers. Hiding on the supply freighter Laden, the SPARTANs stormed the asteroid, killing dozens of his bodyguards and capturing him. Blue Team then left a homing beacon on the asteroid to the UNSC would return and deal with the surviving Insurrectionists. Before they left, Sam placed explosives in the doors of the main hangar bay, which he activated when the five left the asteroid aboard a D77-TC Pelican.