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The Giant Arc is a large-scale structure discovered in June 2021 that spans 3.3 billion light years. [1] The structure of galaxies exceeds the 1.2 billion light year threshold, challenging the cosmological principle that at large enough scales the universe is considered to be the same in every place (homogeneous) and in every direction ().
It was originally referred to as the Giant Arc, but later renamed to the Dragon Arc. [7] These arcs or deformations are mirages caused by gravitational lensing of distant galaxies by the massive galaxy cluster located between the observer and the magnified galaxies. [3] [8] This cluster shows an apparent magnitude of +22.
In 2021, she discovered the Giant Arc, a similar structure located in the same region. [3] It is a significant astronomical discovery, as it challenges the Cosmological Principle. Currently, there is no known cause for its formation within our current understanding of the universe. The Big Ring is the seventh large structure discovered that ...
This galaxy filament contains the Perseus–Pisces Supercluster. Pisces–Cetus Supercluster Complex (1987) 1,000,000,000: Contains the Milky Way, and is the first galaxy filament to be discovered. (The first LQG was found earlier in 1982.) A new report in 2014 confirms the Milky Way as a member of the Laniakea Supercluster.
Listed below are galaxies with diameters greater than 700,000 light-years. This list uses the mean cosmological parameters of the Lambda-CDM model based on results from the 2015 Planck collaboration, where H 0 = 67.74 km/s/Mpc, Ω Λ = 0.6911, and Ω m = 0.3089. [3]
A photograph of a huge plasma arc next to the Andromeda Galaxy, the closest large spiral galaxy to the Milky Way, has won the 2023 Astronomy Photographer of the Year competition for a team of ...
Galaxy groups and clusters; Giant Arc; Giant GRB Ring; Gravitational lens; Great Attractor; H. Halo occupation distribution; Hercules–Corona Borealis Great Wall;
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