Hoag's Object, a ring galaxy. Another red ring galaxy can be seen behind it.
A ring galaxy is a galaxy with a circle-like appearance. Hoag's Object, discovered by Arthur Hoag in 1950, is an example of a ring galaxy.[1] The ring contains many massive, relatively young blue stars, which are extremely bright. The central region contains relatively little luminous matter. Some astronomers believe that ring galaxies are formed when a smaller galaxy passes through the center of a larger galaxy. Because most of a galaxy consists of empty space, this "collision" rarely results in any actual collisions between stars. However, the gravitational disruptions caused by such an event could cause a wave of star formation to move through the larger galaxy. Other astronomers think that rings are formed around some galaxies when external accretion takes place. Star formation would then take place in the accreted material because of the shocks and compressions of the accreted material.[2]
^Nemiroff, R.; Bonnell, J., eds. (September 9, 2002). "Hoag's Object: A Strange Ring Galaxy". Astronomy Picture of the Day. NASA. Retrieved March 31, 2012.
^Appleton, P.N.; Struck-Marcell, Curtis (1996). "Collisional Ring Galaxies". Retrieved March 31, 2012.
A ringgalaxy is a galaxy with a circle-like appearance. Hoag's Object, discovered by Arthur Hoag in 1950, is an example of a ringgalaxy. The ring contains...
was small and light, indicative of a spiral galaxy; but the Spitzer Space Telescope found that the dust ring was larger and more massive than previously...
The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged...
The Cartwheel Galaxy (also known as ESO 350-40 or PGC 2248) is a lenticular ringgalaxy about 500 million light-years away in the constellation Sculptor...
Peculiar galaxies are galactic formations that develop unusual properties due to tidal interactions with other galaxies. A ringgalaxy has a ring-like structure...
Milky Way Galaxy Supercluster Virgo Supercluster Local Group List of largest galaxies List of nearest galaxies List of polar-ringgalaxies List of spiral...
list of ringgalaxies. A ringgalaxy, as the name suggests, is a disc or spiral galaxy with its galactic disc structured or distorted into a ring or torus-like...
An Einstein ring, also known as an Einstein–Chwolson ring or Chwolson ring (named for Orest Chwolson), is created when light from a galaxy or star passes...
The Atlas of Peculiar Galaxies is a catalog of peculiar galaxies produced by Halton Arp in 1966. A total of 338 galaxies are presented in the atlas, which...
UGC 1775 or Arp 10 is a ringgalaxy in the constellation Cetus. The galaxy lies about 400 million light years away from Earth, which means, given its apparent...
the line-of-sight). Rings. Galaxies are divided into those possessing ring-like structures (denoted ‘(r)’) and those without rings (denoted ‘(s)’). So-called...
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the...
List of spiral galaxies List of polar-ringgalaxies List of ringgalaxies List of quasars Satellite galaxies List of satellite galaxies of the Milky Way...
UGC 3730 or Arp 141 is a ringgalaxy in the constellation Camelopardalis. The galaxy lies about 130 million light years away from Earth, which means,...
Way galaxy that contains the Solar System. List of galaxies, general list of galaxiesGalaxies by type List of spiral galaxies List of ringgalaxies List...
the ends of the bars, where it forms into the rings seen in many barred spiral galaxies. In this galaxy, however, no bar is present, so this mechanism...
spiral galaxy and barred spiral galaxy Lenticular galaxy – Class of galaxy between an elliptical galaxy and a spiral galaxyRinggalaxy – Galaxy with an...
The Big Ring is a ring-shaped large-scale structure formed by galaxies and galaxy clusters near the constellation Boötes with a diameter of 1.3 billion...
describe M94 as a barred spiral galaxy, the "bar" structure appears to be more oval-shaped. The galaxy has two ring structures. M94 is classified as...
spheroidal galaxy Burçin's Galaxy is a ringgalaxy in Crater, named after Burçin Mutlu-Pakdil Bode's Galaxy is Messier 81, a spiral galaxy about 12 million...
Lindsay-Shapley ring was found near the Large Magellanic Cloud in 1960. Like the Cartwheel Galaxy in Sculptor, the unusual shape of this galaxy results from...
The Samsung Galaxy S series is a line of flagship Android smartphones and tablet computers produced by Samsung Electronics. In conjunction with the foldable...
barred spiral galaxy approximately 38 million light-years away from Earth in the constellation Horologium. The galaxy displays a double ring structure, with...
Global Information