Byss was destroyed by the last projectile of the Galaxy Gun, in which the Galaxy Gun was hoped to destroy the Eclipse II, only for the vessel to collide with the Galaxy Gun, destroying it, as well as the Eclipse II.[1]
↑Per the reasoning here, the Battle of Yavin, the zero point in the Galactic Standard Calendar per The New Essential Chronology, can be placed in 35:3:8 under the Great ReSynchronization dating system, thereby confirming the placement of the division between each Galactic Standard Calendar year as the third month in the Great ReSynchronization year. Thus, there is a two-month, seven day gap between the two dating systems, with the first two months of a GrS year being the last two of the preceding Galactic Standard Calendar year, and there is a total difference of 35 years and 2 months between the two systems.