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List of the largest nebulae Image Nebula Maximum dimension (in light-years/parsecs) Type Notes NGC 262 Halo Cloud 1,300,000 ly (400,000 pc) [1] H I region: Spiral nebula surrounding NGC 262, which is one of the largest known galaxies. Leo Ring: 650,000 ly (200,000 pc) [2] HVC: A large ring of cold gas that formed from a collision of two ...
List of the largest voids Void name/designation Maximum dimension (in light-years) Notes LOWZ North 13788 void: 2,953,000,000: One of largest known voids, containing 109,066 known galaxies. [28] Local Hole: 2,000,000,000: Proposed void containing the Milky Way galaxy and Local Group as an explanation for the discrepancy in the Hubble constant ...
It differs from the “light travel distance” since the proper distance takes into account the expansion of the universe, i.e. the space expands as the light travels through it, resulting in numerical values which locate the most distant galaxies beyond the Hubble sphere and therefore with recession velocities greater than the speed of light c.
An image of Barnard 68, a dark nebula mistakenly used to refer to the Boötes Void.. The Boötes Void has been often associated with images of Barnard 68, [7] a dark nebula that does not allow light to pass through; however, the images of Barnard 68 are much darker than those observed of the Boötes Void, as the nebula is much closer and there are fewer stars in front of it, as well as its ...
The Cosmic Cliffs at the edge of NGC 3324, one of the first images taken by the James Webb Space Telescope. The Carina Nebula [7] or Eta Carinae Nebula [8] (catalogued as NGC 3372; also known as the Great Carina Nebula [9]) is a large, complex area of bright and dark nebulosity in the constellation Carina, located in the Carina–Sagittarius Arm of the Milky Way galaxy.
Box Nebula NGC 6445: 1786 4.5 11.2 Sagittarius: Eye of Sauron Nebula M 1-42: 10 14 Sagittarius
The Tarantula Nebula has an apparent magnitude of 8. Considering its distance of about 49 kpc [2] (160,000 light-years), this is an extremely luminous non-stellar object. Its luminosity is so great that if it were as close to Earth as the Orion Nebula, the Tarantula Nebula would cast visible shadows. [13]
Size comparison of the event horizons of the black holes of TON 618 and Phoenix A.The orbit of Neptune (white oval) is included for comparison. As a quasar, TON 618 is believed to be the active galactic nucleus at the center of a galaxy, the engine of which is a supermassive black hole feeding on intensely hot gas and matter in an accretion disc.