Complex sentence: If it were placed in our Solar System, it would outshine the Sun as much as the Sun outshines the Moon, and it produces 50 times more energy than all the young stars of the Orion Nebula put together.
Split into simpler sentences: If it were placed in our Solar System, it would outshine the Sun as much as the Sun outshines the Moon. It produces 50 times more energy than all the young stars of the Orion Nebula put together.