E Nebula (Barnard 142/143)

The E Nebula is located in the constellation of Aquila. It appears as a distinct dark absorption cloud against the bright background of the Milky Way. Amateur astronomers can spot it using moderate telescopes under very dark sky conditions.

This dark absorption cloud is notable because its dark silhouette clearly resembles the capital letter E. It was cataloged by the pioneering astronomer E. E. Barnard in the early 20th century. Its distinct shape makes it one of the most recognizable dark nebulae in the sky.

The E Nebula, also known as Barnard 142 and 143, is a dark absorption cloud composed of dense cosmic dust. Unlike emission nebulae that glow brightly, these clouds block out the light from the stars behind them. This creates a striking dark silhouette against the starry background of Aquila.

The E Nebula was cataloged by the American astronomer Edward Emerson Barnard. Barnard was famous for his extensive early 20th-century catalog of dark nebulae, compiling hundreds of these obscure objects. His photographic surveys of the Milky Way revolutionized the study of dark cosmic clouds.