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2025, June 2025 Charles Lillo 2025, June 2025 Charles Lillo

Pi Scorpii and the Blue Reflection Nebula Sh2-1

Dominating the lower left of this frame is the brilliant blue star Pi Scorpii, embedded in a swath of glowing interstellar dust and gas. The surrounding nebula, cataloged as Sh2-1, is a striking reflection nebula located in the constellation Scorpius. Illuminated by the hot B-type star, the dust reflects and scatters starlight, creating the characteristic blue glow.

To the right of Pi Scorpii lies an extensive field of faintly glowing interstellar cirrus and dark molecular dust. These structures are part of a larger complex of nebulae threading through this region of the sky, including faint emission nebulae that appear red from ionized hydrogen. The bright star to the right-center is HD 147165 (also known as Sigma Scorpii), further contributing to the illumination of the nebular material.

This deep image was captured from Tivoli Southern Sky in the Khomas region of Namibia, one of the darkest observing sites on Earth. The pristine southern skies reveal not only the bright nebulae, but also faint, extended dust structures often lost to light pollution.

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