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Anne’s Image of the Day: Barred Spiral Galaxy UGC 12158

17 Jun 2014, 11:29 UTC
Anne’s Image of the Day: Barred Spiral Galaxy UGC 12158
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June 17, 2014 UGC 12158, a barred spiral galaxy in Pegasus Image Credit: ESA/Hubble & NASA UGC 12158 is a barred spiral galaxy of about 140,000 light-years across, located some 400 million light-years away from Earth in the northern constellation of Pegasus (the Winged Horse). It is speeding away from us at approximately 9,289 kilometers [continue reading]

June 17, 2014
UGC 12158, a barred spiral galaxy in Pegasus

Image Credit: ESA/Hubble & NASA
UGC 12158 is a barred spiral galaxy of about 140,000 light-years across, located some 400 million light-years away from Earth in the northern constellation of Pegasus (the Winged Horse). It is speeding away from us at approximately 9,289 kilometers per second. This galaxy looks like our Milky Way’s identical twin in its structure, only it is almost 40% (!!) larger than our home galaxy, so it is really huge.
UGC 12158 is an excellent example of a barred spiral galaxy. Barred spirals, as the name suggest, feature spectacular swirling arms of stars that emanate from a bar-shaped center. Such bar structures are common, being found in about two thirds of spiral galaxies, and are thought to act as funnels, guiding gas to their galactic centers where it ...

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