Ring galaxy - Wikipedia
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 ...
List of ring galaxies - Wikipedia
A ring galaxy, as the name suggests, is a disc or spiral galaxy with its galactic disc structured or distorted into a ring or torus-like appearance. Hoag's Object , discovered by Art Hoag in 1950, is the prototypical example of a ring galaxy.
Ring galaxies, the rarest in the Universe, finally explained
2022年4月20日 · This unusual ring galaxy appears to be lacking a central nucleus, despite having a bright ring rich in not only new stars, but also bright pink star-forming regions.
A Strange Ring Galaxy - NASA
2010年8月27日 · Is this one galaxy or two? Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object. On the outside is a ring dominated by bright blue stars, while near the center lies a ball of much redder stars that are likely much older.
Ring galaxy - Simple English Wikipedia, the free encyclopedia
A ring galaxy is a kind of galaxy that has a ring shape. Hoag's Object and NGC 1291 are two examples. [1] The ring is made up of many massive, young blue stars, which are extremely bright. The middle of the galaxy contains far less luminous matter. Some astronomers believe that ring galaxies are formed when a smaller galaxy passes through the ...
Ring Galaxy - Definition & Detailed Explanation - Astronomical …
2024年3月25日 · What is a Ring Galaxy? A ring galaxy is a type of galaxy that is characterized by a ring-like structure of stars, gas, and dust surrounding a central core. These galaxies are relatively rare in the universe, making up only a small percentage of all known galaxies.
Ring Galaxy - Universe Today
2009年5月11日 · Astronomers think that ring galaxies are formed when a smaller galaxy passes through the center of a larger galaxy. The space between stars in a galaxy is vast, so when galaxies collide, the...
Do ring galaxies spread out as they evolve? - EarthSky
2008年3月14日 · Ring galaxies are rare, and astronomers have tried to figure out how they form. One idea is that they start out as spiral galaxies – like our own Milky Way – until a small intruder galaxy ...
Ring Galaxy - an overview | ScienceDirect Topics
A ring galaxy is a type of galaxy characterized by a ring-like structure observed in its morphology, often formed due to gravitational interactions such as bar-like patterns, intergalactic interactions, or strong collisions with companions, leading to the formation of …
APOD: 2021 July 28 - Ring Galaxy AM 0644 741
Ring Galaxy AM 0644-741 Image Credit: NASA, ESA, Hubble, HLA; Processing: Jonathan Lodge. Explanation: The rim of the large blue galaxy at the right is an immense ring-like structure 150,000 light years in diameter composed of newly formed, extremely bright, massive stars.
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