A multiple star 1350 l.y. away at the heart of the Orion Nebula, also known as Theta1 Orionis. The Trapezium consists of four main stars of spectral types O and B, magnitudes 5.1, 6.7, 6.7, and 8.0. There are additional fainter stars, forming a loose cluster born from the gas of the Orion Nebula.