"a huge star that was blazing like a torch fell from the sky." The fire of the huge star looked similar to the fire of a torch. (See: [[rc://en/ta/man/translate/figs-simile]])
Wormwood is a shrub that tastes bitter. People made medicine out of it, but they also believed that it was poisonous. AT: "The name of the star is Bitterness" or "The name of the star is Bitter Medicine" (See: [[rc://en/ta/man/translate/translate-unknown]])
The bitter taste of the water is spoken of as if it were wormwood. AT: "became bitter like wormwood" or "became bitter" (See: [[rc://en/ta/man/translate/figs-metaphor]])