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An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. [1] Irregular galaxies do not fall into any of the regular classes of the Hubble sequence , and they are often chaotic in appearance, with neither a nuclear bulge nor any trace of spiral arm structure. [ 2 ]
NGC 1602 is a barred irregular galaxy in the constellation Dorado. The galaxy lies about 65 million light years away from Earth, which means, given its apparent dimensions, that NGC 1602 is approximately 50,000 light years across. [1] It was discovered by John Herschel on December 5, 1834. [3] It is a member of the Dorado Group. [4]
English: This Hubble Picture of the Week features NGC 2814, an irregular galaxy that lies about 85 million light years from Earth. In this image, which was captured using Hubble’s Advanced Camera for Surveys (ACS), the galaxy appears to be quite isolated: visually, it looks a little like a loose stroke of bright paint across a dark background.
NGC 1313 (also known as the Topsy Turvy Galaxy [2]) is a field galaxy [3] and an irregular galaxy [4] discovered by the Scottish astronomer James Dunlop on 27 September 1826. [5] It has a diameter of about 50,000 light-years , or about half the size of the Milky Way .
Sextans A (also known as UGCA 205) is a small dwarf irregular galaxy.It spans about 5000 light-years across, and is located at 4.3 million light-years away, in the outskirts of the Local Group of galaxies, which includes the Milky Way galaxy, and to which Sextans A may or may not belong.
Holmberg IX is a dwarf irregular galaxy and a satellite galaxy of M81, located in the constellation of Ursa Major.It is of the Magellanic type of Galaxy as it is similar to the Small Magellanic Cloud, neighbour galaxy to Milky Way Galaxy. [3]
NGC 2814 is a small spiral galaxy in the constellation Ursa Major. Its velocity relative to the cosmic microwave background is 1,693 ± 8 km/s, which corresponds to a Hubble distance of 24.97 ± 1.75 Mpc (~81.5 million light years.). [1] German-British astronomer William Herschel discovered this galaxy on 3 April 1791. NGC 2814 has a luminosity ...
NGC 6745 (also known as UGC 11391) is an irregular galaxy about 206 million light-years (63.5 mega-parsecs) away in the constellation Lyra. It was discovered by French astronomer Édouard Stephan on 24 July 1879. [4] NGC 6745 is actually a trio of galaxies in the process of colliding. The three galaxies have been colliding for hundreds of ...