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  • Payton Stitzer

    A nearly perfect ring of hot, blue stars pinwheels about the yellow nucleus of an unusual galaxy known as Hoag's Object. The "gap" separating the hot blue stars from the yellow older stars may actually contain some star clusters that are too faint to see. Curiously, an object resembling Hoag's Object can be seen in the gap at the one o'clock position. The object is probably a background ring galaxy.

  • Jessica Jule

    Hoag's Object by NASA: This non-typical galaxy is known as a ring galaxy, and was discovered in 1950 by astronomer Art Hoag, who initially thought it to be a planetary nebula. Serendipitously, from the perspective of our solar system what appears to be an even more distant ring galaxy is plainly visible within the gap between this galaxy's central body of mostly yellow stars and the outer ring of blue stars. via wikipedia. #Ring_Galaxy #Hogs_Object #Astronomy

  • Tina Jenkins Foote

    Hoag's Object: A Strange Ring Galaxy. Explanation: Is this one galaxy or two? This question came to light in 1950 when astronomer Art Hoag 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. Between the two is a gap that appears almost completely dark. How Hoag's Object formed remains unknown, although similar objects have now been identified and collectively labeled as a form of ring galaxy. Genesis hypotheses include a galaxy collision billions of years ago and the gravitational effect of a central bar that has since vanished. The above photo taken by the Hubble Space Telescope in July 2001 reveals unprecedented details of Hoag's Object and may yield a better understanding. Hoag's Object spans about 100,000 light years and lies about 600 million light years away toward the constellation of the Snake (Serpens). Coincidentally, visible in the gap (at about one o'clock) is yet another ring galaxy that likely lies far in the distance. Credit: R. Lucas (STScI/AURA), Hubble Heritage Team, NASA

  • James Quinn

    Hoag's Object, a galaxy made up of a nearly perfect ring of hot, blue stars rotating around a yellow nucleus. The entire galaxy is about 120,000 light-years wide, which is slightly larger than our Milky Way Galaxy. What appears to be a gap separating the two stellar populations may actually contain some star clusters that are almost too faint to see. Curiously, an object that bears an uncanny resemblance to Hoag's Object can be seen in the gap at the one o'clock position. The object is probably a distant ring galaxy. The blue ring of stars may be the shredded remains of a galaxy that passed nearby about 2 to 3 billion years ago. Hoag's Object is 600 million light-years away in the constellation Serpens.

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