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The Sloan Great Wall (SGW) is a cosmic structure formed by a giant wall of galaxies (a galaxy filament). Its discovery was announced from Princeton University on October 20, 2003, by J. Richard Gott III , Mario Jurić , and their colleagues, based on data from the Sloan Digital Sky Survey .
The Sloan Great Wall, the Pisces–Cetus Supercluster Complex, the Horologium-Reticulum Supercluster and the Shapley Supercluster as seen in the 2dF Galaxy Redshift Survey This is a list of the largest cosmic structures so far discovered.
Sloan Great Wall (SDSS Great Wall) 2003 z=0.07804 433 Mpc long This was the largest known galaxy filament to be discovered, [22] until it was eclipsed by the Hercules–Corona Borealis Great Wall found ten years later. Sculptor Wall (Southern Great Wall, Great Southern Wall, Southern Wall) 8000 km/s long 5000 km/s wide
This discovery surpasses the size of the Sloan Great Wall, a galaxy cluster that measured around 1.1 billion light-years in length and was discovered in 2003.
This graphic represents a large supercluster system, like the BOSS Great Wall, with its clusters, voids, and galaxy filaments. The BOSS Great Wall is a supercluster complex that was identified, using the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey (SDSS), in early 2016.
13 Ym – 1.37 billion light-years – length of the South Pole Wall; 13 Ym – 1.38 billion light-years – length of the Sloan Great Wall; 18 Ym – redshift 0.16 – 1.9 billion light-years – distance to the quasar 3C 273 (light travel distance) 30.8568 Ym – 3.2616 billion light-years – 1 gigaparsec
The Sloan Digital Sky Survey or SDSS is a major multi-spectral imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point Observatory in New Mexico, United States. The project began in 2000 and was named after the Alfred P. Sloan Foundation, which contributed significant funding.
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