Destruction of Byss

The Destruction of Byss was a cataclysmic event that marked the end of Operation Shadow Hand, along with Emperor Palpatine's final death.

Infiltration of Eclipse II
During the Battle of Onderon, Lando Calrissian and R2-D2 infiltrated Palpatine's flagship, Eclipse II by attaching the freighter Millennium Falcon to the Star Dreadnought's lower hull.

The astromech droid sabotaged the vehicle's automated hyperdrive engines and set the vessel on a course for Byss, exiting hyperspace at the precise location of the dreaded Galaxy Gun cannon. Despite attempts from the Eclipse II's crew to override the command, the Star Dreadnought entered hyperspace.

The procedure went so fast, the crew of the Millennium Falcon did not have time to detach before the jump, and so went on an involuntary journey towards the Deep Core with the warship.

End of Byss
While the events on Onderon unfolded, the engineer Umak Leth, architect of the Galaxy Gun, decided to risk arming the Gun to aide his Emperor and gain some of the esteem he had lost following the Nespis VIII blunder.

As the Galaxy Gun was being prepared, the Eclipse II suddenly came out of hyperspace, ramming the cannon and damaging both vessels. Millennium Falcon managed to disconnect from the Star Dreadnought before impact and prepared to enter hyperspace. As the Gun was struck by the Eclipse II, the missile it was being armed with, flew out of the cannon and got caught by Byss's gravity well.

It exploded upon impact and destroyed the planet, taking the orbiting fleet along with it, as well as the wrecks of the Galaxy Gun and Eclipse II. The Falcon managed to exit the Beshqek system before being hit by debris from the explosion.

Appearances

 * Empire's End