Why does the Veil Nebula appear as vibrant, striking colors in deep-sky photographs?

Answer

They map specific elemental emissions captured over long exposures

The striking colors seen in photographs are produced by astrophotographers using specialized narrow-band filters to map emissions from ionized elements like hydrogen and oxygen, which the unaided eye cannot perceive.

Why does the Veil Nebula appear as vibrant, striking colors in deep-sky photographs?
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