Asteroid vaporization by Imperial Star Destroyer light-turbolaser-artillery

The surfaces & trenches of an Imperial Star Destroyer is pockmarked by scores of turrets & bunkers to house all of the ships variable light turbolaser cannons. These turbolaser stations represent the least powerful weapon-systems on the Star Destroyer, and yet a single blast could still vapourize a multi-thousand-tonne asteroid. The purpose of these weapons is to provide point-defence by generating a lattice of laser & ion fire capable of intercepting starfighters, gunships & corvettes. The heaviest turbola