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These types of irregular galaxies also have high amounts of dark matter. [11] Irregular galaxies are considered late-type along with spiral galaxies as opposed to early type elliptical galaxies. [12] Some of the irregular galaxies, especially of the Magellanic type, are small spiral galaxies that are being distorted by the gravity of a larger ...
The Phoenix Dwarf Galaxy is a dwarf irregular galaxy, featuring younger stars in its inner regions and older ones at its outskirts. [7] There are many dwarf galaxies in the Local Group; these small galaxies frequently orbit larger galaxies, such as the Milky Way, the Andromeda Galaxy and the Triangulum Galaxy.
When two galaxies come close to each other, their mutual gravitational forces can cause them to acquire highly irregular shapes. [4] The terms 'peculiar galaxy' and 'interacting galaxy' have now become synonymous because the majority of peculiar galaxies attribute their forms to such gravitational forces.
Its irregular shape and continuous structure resembles a spiderweb. ... The characteristics of Seyfert galaxies were first observed in M77 in 1908; however, Seyferts ...
This category contains galaxies in the Irr-I, Irr-II, dI, Sm and Im categories. Dwarf galaxies may be categorized under Category:Dwarf irregular galaxies The main article for this category is Irregular galaxy .
IC 10 is an irregular galaxy in the constellation Cassiopeia. It was discovered by Lewis Swift in 1887 [5] and in 1935 Nicholas Mayall became the first to suggest that the object is extragalactic. Edwin Hubble suspected it might belong to the Local Group of galaxies, but its status remained uncertain for decades
Irr-II galaxies do not possess any structure that resembles a Hubble classification, and may have been disrupted. [100] Nearby examples of (dwarf) irregular galaxies include the Magellanic Clouds. [101] A dark or "ultra diffuse" galaxy is an extremely-low-luminosity galaxy. It may be the same size as the Milky Way, but have a visible star count ...
The Sculptor Dwarf Irregular Galaxy and the dwarf galaxy UGCA 442 are both companions of the spiral galaxy NGC 7793. [3] These galaxies all lie within the Sculptor Group, a weakly bound, filament-like group of galaxies located near the Local Group.