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2025 Charles Lillo 2025 Charles Lillo

LDN 1622, the Boogeyman Nebula

LDN 1622, popularly known as the Boogeyman Nebula, is a dark molecular cloud embedded along the edge of the Orion–Eridanus region, set against a rich backdrop of hydrogen emission. The nebula itself is not emitting light but is instead visible in silhouette, its dense dust obscuring the bright H-alpha glow of ionized hydrogen behind it. Subtle internal structures and curling tendrils reveal turbulence within the cloud, where gravity and external radiation fields shape the dust into sharp, organic forms. The surrounding red emission traces vast ionized regions energized by nearby hot, young stars, highlighting the contrast between star forming light and starless darkness.

This image combines 15 hours of H-alpha with 3 hours of RGB data, captured from the Interstellar Observatory in Greece, allowing both the faint dust absorption and the surrounding emission to be rendered with depth and texture. The wide field emphasizes how small and isolated LDN 1622 is compared to the immense glowing clouds around it, reinforcing its eerie, claw like appearance. Scenes like this offer a glimpse into the earliest stages of star formation, where cold, opaque clouds quietly gather mass long before new stars ignite within them.

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