Diffuse Nebulae
Diffuse Nebulae Click icon to view a diffuse nebula from Messier's catalog Messier's diffuse nebulae; Links The icon shows reflection nebulae in Scorpius around Antares. The globular cluster at the lower right is M4. Diffuse nebulae, sometimes inacurately referred to as gaseous nebulae, are clouds of interstellar matter, namely thin but widespread agglomerations of gas and dust. If they are ...
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