Dark nebula
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A dark nebula or absorption nebula is a type of interstellar cloud, particularly molecular clouds, that is so dense that it obscures the visible wavelengths of light from objects behind it, such as ba
The dark nebula LDN 1768 in front of background stars
The Milky Way as seen by Gaia, with prominent dark features labeled in white, as well as prominent star clouds labeled in black
LH 95
Coalsack Nebula
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The Coalsack Nebula is a dark nebula, which is visible to the naked eye as a dark patch obscuring part of the Milky Way east of Acrux in the constellation of Crux.
Dark nebula
…and the nebula, and because they have the largest angular size, appearing as dark patches against the brighter background of the Milky Way like the Coalsack Nebula and the Great Rift. These naked-eye objects are sometimes known as dark cloud constellations and take on a variety of names. In the central regions of…
The Coalsack Nebula, taken by the Wide Field Imager on the MPG/ESO 2.2-metre telescope
Coal Sack Nebula
Coalsack Nebula and bright star Acrux