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  2. Nebula - Wikipedia

    en.wikipedia.org/wiki/Nebula

    Examples of star-forming regions are the Orion Nebula, the Rosette Nebula and the Omega Nebula. Feedback from star-formation, in the form of supernova explosions of massive stars, stellar winds or ultraviolet radiation from massive stars, or outflows from low-mass stars may disrupt the cloud, destroying the nebula after several million years.

  3. Dark nebula - Wikipedia

    en.wikipedia.org/wiki/Dark_nebula

    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 background stars and emission or reflection nebulae.

  4. List of largest nebulae - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_nebulae

    The N 70 Nebula, in the Large Magellanic Cloud has a shell structure and is really a bubble in space. It is a "Super Bubble". Barnard's Loop: 300 ly (92 pc) [33] [34] H II region: Supernova over the last 4 million years probably carved cavities in gas clouds forming the semi circle shape of Barnard’s loop. Sh2-54: 252 ly (77 pc) [35] [36] H ...

  5. Rho Ophiuchi cloud complex - Wikipedia

    en.wikipedia.org/wiki/Rho_Ophiuchi_cloud_complex

    The Rho Ophiuchi cloud complex is a complex of interstellar clouds with different nebulae, particularly a dark nebula which is centered 1° south of the star ρ Ophiuchi, which it among others extends to, of the constellation Ophiuchus.

  6. Nebulae and Star Clusters - Wikipedia

    en.wikipedia.org/wiki/Nebulae_and_Star_Clusters

    A Nebula is a cloud of dust and gas inside a galaxy. Nebulae become visible if the gas glows, or if the cloud reflects starlight or obscures light from more distant objects. The catalogues that it may refer to: Catalogue des nébuleuses et des amas d'étoiles (Messier "M" catalogue) first published 1771

  7. Emission nebula - Wikipedia

    en.wikipedia.org/wiki/Emission_nebula

    An emission nebula is a nebula formed of ionized gases that emit light of various ... a young star will ionize part of the same cloud from which it was born, although ...

  8. Star formation - Wikipedia

    en.wikipedia.org/wiki/Star_formation

    The W51 nebula in Aquila - one of the largest star factories in the Milky Way (August 25, 2020). Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse and form stars. [1]

  9. Cosmic dust - Wikipedia

    en.wikipedia.org/wiki/Cosmic_dust

    The Solar System has its own interplanetary dust cloud, as do extrasolar systems. There are different types of nebulae with different physical causes and processes: diffuse nebula, infrared (IR) reflection nebula, supernova remnant, molecular cloud, HII regions, photodissociation regions, and dark nebula.