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It is the largest known spiral galaxy with the isophotal diameter of over 717,000 light-years (220 kiloparsecs). [1] This is a list of largest galaxies known, ...
It possesses a diffuse core which is the largest core of any galaxy known to date, [5] and contains a supermassive black hole, one of the largest discovered. [5] IC 1101 is located at 354.0 megaparsecs (1.15 billion light-years) from Earth. It was discovered on 19 June 1790, by the German-British astronomer William Herschel. [6]
NGC 6872 is interacting with the lenticular galaxy IC 4970, which is less than one twelfth as large. [2] [3] The galaxy has two elongated arms with a diameter based on ultraviolet light of over 522,000 light-years (160,000 pc), and a D 25.5 isophotal diameter of over 717,000 light-years (220,000 pc), making it the largest known spiral galaxy.
A Milky Way satellite dwarf galaxy. [citation needed] Largest known galaxy ESO 383-76: Centaurus: 540.89 kiloparsecs (1,764,000 light-years) 90% total B-light: Central galaxy of Abell 3571 [citation needed] Largest spiral galaxy NGC 6872: Pavo: 220 kiloparsecs (718,000 light-years) D 25.5 isophote: Interacting galaxy, stripped by IC 4970 ...
This is a list of the largest cosmic structures so far discovered. The unit of measurement used is the light-year (distance traveled by light in one Julian year; approximately 9.46 trillion kilometres). This list includes superclusters, galaxy filaments and large quasar groups (LQGs). The structures are listed based on their longest dimension.
Alcyoneus is a low-excitation, Fanaroff–Riley class II radio galaxy located 3.5 billion light-years (1.1 gigaparsecs) from Earth, with host galaxy SDSS J081421.68+522410.0. [2] It is located in the constellation Lynx and it was discovered in Low-Frequency Array (LOFAR) data by a team of astronomers led by Martijn Oei.
List of the largest known stars in Andromeda and Triangulum galaxies Star name Solar radii (Sun = 1) Galaxy Method [a] Notes Theoretical limit of star size (Andromeda Galaxy) ≳1,750 [11] L/T eff: Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3,625 K.
The galaxy experiences an infall of gas at the rate of two to three solar masses per year, most of which may be accreted onto the core region. [56] The extended stellar envelope of this galaxy reaches a radius of about 150 kiloparsecs (490,000 light-years), [7] compared with about 100 kiloparsecs (330,000 light-years) for the Milky Way. [57]