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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 .
Size (left) and distance (right) of a few well-known galaxies put to scale. 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).
A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek galaxias, literally 'milky', a reference to the Milky Way galaxy that contains the Solar System.
Maffei 2 is a spiral galaxy about 10 million light-years away in the constellation Cassiopeia. Malin 1 is one of the largest spiral galaxies known and is the archetypal Low Surface Brightness galaxy; Mayall's Object; Willman 1 is an ultra low-mass dwarf galaxy. The Wolf-Lundmark-Melotte galaxy is an irregular galaxy on the outer edges of the ...
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 ]
A Gaelic name meaning “little king”—or, if it’s for a lady, queen. 15. Jordan. This unisex name of Hebrew origin means “one who descends” or “to flow down” (i.e., like the namesake ...
One of the galaxies is an ungravitationally bound background object. The other "galaxy" is instead an extension of the interacting system — a tidal stream caused by the merger. The group is, therefore, more properly called HCG 79; the name refers to the visual collection and not the group. HCG 79 lies 190 million light-years away in the ...
This is a list of known galaxies within 3.8 megaparsecs (12.4 million light-years) of the Solar System, in ascending order of heliocentric distance, or the distance to the Sun. This encompasses about 50 major Local Group galaxies, and some that are members of neighboring galaxy groups , the M81 Group and the Centaurus A/M83 Group , and some ...