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Coincidentally, visible in the gap (at about one o'clock) is yet another ring galaxy that likely lies far in the distance. In 2002, the ultra-sharp optics of the Hubble Space Telescope revealed Hoag’s Object, as it is now called, as a perfect blue ring of stars, dust, and gas, complete with knotty clumps that are unresolved star clusters. View our Privacy Policy. One scientist thinks a barred galaxy can go through extreme instability that brings about this shape, while others point out that, if that were the case, the nucleus would be disk-shaped rather than the ball now seen. Follow APOD on: Facebook or Google Plus
↳   The Bridge: Discuss an Astronomy Picture of the Day, ↳   Ship's Log: APOD Retrospectives and Collections, ↳   The Library: Information Desk and Educational Resources, ↳   The Communications Center: Breaking Science News, ↳   The Observation Deck: Latest Sky Photography, ↳   The Asterisk Café: Discuss Anything Astronomy Related, ↳   Classroom: Extraordinary Concepts in Physics, ↳   The Planetarium: Astronomy Seminar of the Week (ASOW), ↳   The Science Labs: Participate in Citizen Science or Smartphone Science, APOD: Hoags Object: A Strange Ring Galaxy (2013 Jul 28), Re: APOD: Hoags Object: A Strange Ring Galaxy (2013 Jul 28), NGC 1291 also has an inner ring and a bar, http://en.wikipedia.org/wiki/Gonzo_journalism. This cosmic turducken is known as Hoag's object, and it has befuddled stargazers since astronomer Arthur Hoag discovered it in 1950. Collisions can also create density waves, which computer simulations show can sometimes produce a bright outer ring.

It's very tempting to say it's some kind of cosmic joke.

In other words, yes, this is a galaxy. Order now to get your Black Holes Collection from Space & Beyond Box! They look so neat and orderly and so... so... donut like. In this scenario, the quasar’s light is distorted into a halo by space-warping caused by a massive foreground spherical galaxy that it seems to surround. There are “ring galaxies” that slightly resemble Hoag’s Object because their peripheries are much brighter than their interiors. Hoag’s Object outside of it’s outer blue ring, is also made up of an inner yellow circle called the nucleus.

by Galaxian » Sun Jul 28, 2013 6:54 am, Post

Last chance to join our 2020 Costa Rica Star Party! Cruise to totality in the South Pacific with Astronomy in 2020. In 1950, astronomer Arthur Hoag came upon a tiny, faint, 16th-magnitude ring surrounding a ball-like center, and reasonably assumed it was a planetary nebula — a nearby puff of gas expelled from a single old-aged star.

by neufer » Mon Jul 29, 2013 1:10 am, Post

by gonzo gonzales » Sun Jul 28, 2013 7:04 pm, Post The Scutum Star Cloud, the Wild Duck Cluster (M11), and Barnard's Galaxy (NGC 6822), How Luna 3 first unveiled the Moon’s farside, Explore Earth's history with help from the cosmos, OSIRIS-REx is overflowing with samples from Bennu. Ring-Ring.

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by gmPhil » Sun Jul 28, 2013 4:02 pm, Post Image credit: NASA. As if to tease us further, Nature has a final surprise. Gobekli Tepe: The first astronomical observatory? Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. by Beyond » Sun Jul 28, 2013 9:52 pm, Post

Every time this object is featured I am bothered by the coincidental ring galaxy in the gap.

We do not sell, rent or trade our email lists. by Ann » Sun Jul 28, 2013 6:47 am, Post This is why I stay up late, just to see what misteries the sky controller sends our way. Despite their extreme rarity, a Hoag-like ring galaxy appears within Hoag’s own ring.
by Beyond » Sun Jul 28, 2013 4:18 am, Post

by Boomer12k » Sun Jul 28, 2013 11:46 am, Post But you started the "Ring" song, Art! Between the two is a gap that appears almost completely dark.

A few extremely rare so-called Hoag-type galaxies can be found with difficulty, but all have differences, like some trace of spiral structure, or a nucleus that has a bar or is elliptical or disk-shaped. What makes Hoag’s Object so interesting is the brightness of the ring and the clear, wide separation between the yellow elliptical “body” and the blue ring.

Hoags Object: A Strange Ring Galaxy Explanation: Is this one galaxy or two? The ring makes up billions of hot blue stars. Hoag's Object spans about 100,000 light years and lies about 600 million light years away toward the constellation of the Snake (Serpens).

It can’t be there. But the lack of any candidates in the vicinity, plus the slow spin of the core compared to the motions of the ring, makes most astronomers reject this hypothesis. Instead, the nucleus sits all by itself in space.

"Let's make this type of galaxy quite rare and then stick another one of the same type right here so that the Earthlings will have something to ponder.". Hoag’s Object, with a background ring galaxy. by Chris Peterson » Sun Jul 28, 2013 11:30 pm, Post This one also reminds me of an inner tube, just calmly floating about, in the ocean of space.

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