There are an estimated 100 billion galaxies in all of the observable universe. [1] . On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list).

Listed below are some notable galaxies under 700,000 light-years in diameter, for the purpose of comparison. All links to NED are available, except for the Milky Way, which is linked to the relevant paper detailing its size.

Jun 9, 2023 · Of all the known galaxies, which ones happen to be the largest and how big are they? To date, the biggest galaxy that has been discovered is IC 1101. IC 1101 is classified as a supergiant elliptical galaxy, and it looks far different than the Milky Way.

IC 1101 is a class S0 supergiant lenticular galaxy at the center of the Abell 2029 galaxy cluster. It has an isophotal diameter at about 123.65 to 169.61 kiloparsecs (400,000 to 550,000 light-years).

Dec 9, 2024 · The giant elliptical galaxy at the heart of cluster Abell 2029, IC 1101, is the largest known galaxy in the Universe, at least in terms of stellar extent.

Sep 29, 2020 · Currently, the observable Universe, which has a radius of 46.5 billion light-years, seems to contain at least two trillion galaxies. Our galaxy, the Milky Way, is just one among these numerous galaxies, and it isn’t even considered a big galaxy.

Feb 1, 2022 · While estimates among different experts vary, an acceptable range is between 100 billion and 200 billion galaxies, said Mario Livio, an astrophysicist at the Space Telescope Science...

An A-to-Z list of 100 notable galaxies of the night sky. Dim, diffuse objects like galaxies require lots of telescope aperture and are ideal for viewing with a dobsonian telescope. Also see the Local Group of Galaxies. 100 notable galaxies of the night sky.

Nov 4, 2024 · NGC 6872 is one of the biggest spiral galaxies, about 522,000 light-years wide. Its uniquely interesting shape is due to its interaction with a smaller galaxy nearby.

May 6, 2024 · There are far more than 7 galaxies in the universe; billions are known to exist, each with its own unique properties and characteristics. What are some cool names of galaxies? Some galaxies have interesting names like the Whirlpool Galaxy, the Black Eye Galaxy, and the Fireworks Galaxy, inspired by their appearance or characteristics.