2/27/2023 0 Comments Barred spiral galaxyThese are often surrounded by a much fainter halo of stars, many of which reside in globular clusters.īy Chrissy Sexton, Earth. NGC 4900 is a barred spiral galaxy (SB (rs)c) without any known activity or star formation in its central region ( Martin and Friedli, 1997 ). Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars known as the bulge. What type do you think the barred spiral to the right would be The arms of a spiral galaxy have lots of gas and dust, and they are often areas where new stars. This discovery provides new insight into the formation and evolution of galaxies.Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such, form part of the Hubble sequence. Scientists have recently determined that bars are more common in galaxies now than they were in the past. A perfect example of a barred spiral galaxyĪccording to the ESA, about two thirds of spiral galaxies, including our own Milky Way, contain a bar. Prominently barred spiral galaxy NGC 6217, featured here, was captured in spectacular detail in this image taken by the Advanced Camera for Surveys on the orbiting Hubble Space Telescope in 2009. Even our own Milky Way Galaxy is thought to have a modest central bar. This new image from the Hubble Space Telescope reveals the defined central bar and long arms of NGC 613, which is known as a barred spiral galaxy. A barred spiral galaxy (Fig 3) is a type of spiral galaxy with a rectangular or cigar-shaped nucleus, from the ends of which spiral arms extend. Explanation: Many spiral galaxies have bars across their centers. The galaxy was first discovered by German-English astronomer William Hershel in 1798. Today’s Image of the Day from the European Space Agency features NGC 613, a galaxy that is located 67 million light years away in the southern constellation of Sculptor. A perfect example of a barred spiral galaxy.
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